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TNPSC Group II · Flashcards

TNPSC Group II flashcards

1133 cards from 98 fact-checked topic notes · English

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Political Events — General Studies · 12 cards
Electoral Process
India follows a parliamentary system with elections conducted by the Election Commission of India (ECI). Lok Sabha elections occur every 5 years; state assemblies follow their own cycles. By-elections fill casual vacancies.
Model Code of Conduct (MCC)
Guidelines that come into force from the announcement of elections until results. Restricts government from announcing new schemes or making transfers that could influence voters.
Constitutional Amendments
Changes to the Constitution require special majority in Parliament. Recent amendments (like 103rd for EWS reservation, 106th for women's reservation) are important.
Government Schemes
Central schemes (Centrally Sponsored Schemes and Central Sector Schemes) and State schemes form a major chunk. Know the ministry responsible, launch year, and key features.
Ordinance Route
President/Governor can promulgate ordinances when legislature is not in session. Must be ratified within 6 weeks of legislature reconvening.
Cabinet Decisions
Major policy decisions like new national policies, international agreements, and institutional reforms announced through Cabinet.
Governor's Role
Constitutional head of state; recent controversies regarding delayed assent to bills and dismissal of governments are exam-relevant.
Anti-Defection Law
Tenth Schedule governs defection. Disqualification if a member voluntarily gives up membership or votes against party whip (exceptions exist for mergers).
18th Lok Sabha (2024)
Elections held April-June 2024; NDA formed government; Om Birla re-elected Speaker
Women's Reservation Act 2023
106th Amendment; 33% seats reserved in Lok Sabha and State Assemblies; effective after delimitation post-2026 Census
One Nation One Election
High-Level Committee under Ram Nath Kovind submitted report (2024); proposes simultaneous elections
Article 370 Verdict
Supreme Court upheld abrogation (December 2023); creation of Ladakh UT upheld; Court did not rule on converting J&K State into a UT, recording the Centre's assurance that statehood will be restored
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Nature of Indian Economy — General Studies · 12 cards
Three Sectors of Economy
Primary (agriculture, mining, fishing), Secondary (manufacturing, construction), Tertiary (services like banking, IT, transport). India's tertiary sector now contributes over 50% of GDP.
Mixed Economy Model
India adopted a mixed economy after 1947 — private enterprise operates alongside government-owned public sector undertakings (PSUs). Neither pure capitalism nor pure socialism.
Planning Era (1951–2017)
Five-Year Plans guided resource allocation. Planning Commission (1950) replaced by NITI Aayog (2015). Shift from directive planning to indicative planning.
LPG Reforms (1991)
Liberalization, Privatization, Globalization — triggered by balance of payments crisis. Opened economy to FDI, reduced industrial licensing, encouraged private participation.
Demographic Dividend
India's young working-age population (15–64 years) exceeds dependents, offering potential for high growth if skilled employment is generated.
Informal vs Formal Economy
Nearly 90% of India's workforce is in the informal/unorganized sector with low wages and no social security — a major structural challenge.
GDP Measurement
India uses Gross Value Added (GVA) at basic prices with base year 2011–12. CSO (now NSO) releases GDP estimates.
GDP by sector (approx. 2023–24)
Agriculture ~15%, Industry ~25%, Services ~55%
Employment by sector
Agriculture still employs ~45% of workforce
Base year for GDP
2011–12 (current series)
LPG Reforms year
1991 (Finance Minister: Manmohan Singh)
NITI Aayog established
January 1, 2015 (replaced Planning Commission)
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Revolt of 1857 — General Studies · 12 cards
Immediate trigger
Introduction of Enfield rifles with cartridges rumoured to be greased with cow and pig fat, offending both Hindu and Muslim sepoys.
Doctrine of Lapse
Lord Dalhousie's policy of annexing Indian states (Satara, Jhansi, Nagpur) when rulers died without natural heirs—created widespread princely discontent.
Economic exploitation
Drain of wealth, destruction of Indian handicrafts, heavy land revenue under Permanent and Ryotwari settlements, ruin of artisans and peasants.
Social and religious interference
Abolition of Sati (1829), Widow Remarriage Act (1856), and fear of forced conversions created suspicion among orthodox sections.
Military grievances
Indian sepoys faced discrimination in pay, promotions, and allowances; the General Service Enlistment Act (1856) required serving overseas, violating caste norms.
First spark at Meerut
On 10 May 1857, sepoys released imprisoned comrades, killed British officers, and marched to Delhi to restore Mughal Emperor Bahadur Shah Zafar as symbolic leader.
Localized and uncoordinated nature
The revolt lacked central leadership, unified plan, and modern weapons—contributing to its suppression by late 1858.
End of Company Rule
The Government of India Act 1858 transferred power from East India Company to the British Crown, beginning direct imperial governance.
Date of outbreak
10 May 1857, Meerut
First sign of unrest
Mangal Pandey's attack at Barrackpore, 29 March 1857
Symbolic leader
Bahadur Shah Zafar II (last Mughal Emperor)
Delhi recaptured
September 1857 by British forces
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Location and Physical Features — General Studies · 12 cards
Latitudinal and Longitudinal Extent
India extends from 8°4'N to 37°6'N latitude and 68°7'E to 97°25'E longitude. The Tropic of Cancer (23°30'N) passes through eight states, dividing India into tropical and subtropical zones.
Standard Meridian
82°30'E longitude passing through Mirzapur (Uttar Pradesh) is India's Standard Meridian, making IST 5 hours 30 minutes ahead of GMT.
Three Major Physiographic Divisions
The Himalayas (young fold mountains in the north), the Indo-Gangetic Plains (alluvial depositional region), and the Peninsular Plateau (ancient crystalline landmass).
Himalayan Parallel Ranges
From north to south—Himadri (Greater Himalayas), Himachal (Lesser Himalayas), and Shiwaliks (Outer Himalayas). Each has distinct elevation and characteristics.
Peninsular Plateau Character
The Deccan Plateau is a tilted block, higher in the west and sloping eastward, which explains why most peninsular rivers flow west to east.
Coastal Plains
Western coast is narrow and rocky (Konkan, Malabar); Eastern coast is broader with deltas and lagoons (Northern Circars, Coromandel).
Island Territories
Andaman & Nicobar Islands (Bay of Bengal, elevated parts of submarine mountains; a few smaller islands volcanic) and Lakshadweep (Arabian Sea, coral origin) have strategic and ecological significance.
Total Area
32.87 lakh sq km (7th largest country)
Land Frontier
Approximately 15,200 km
Coastline
11,098.81 km (revised official figure, 2025; older figure 7,516.6 km, mainland 6,100 km)
Highest Peak (India)
Kanchenjunga — 8,586 m (Sikkim)
Highest Peak (World, in India's claim)
K2 — 8,611 m (PoK region)
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Indus Valley Civilization — General Studies · 12 cards
Chronology
Early/Pre-Harappan (3300–2600 BCE), Mature Harappan (2600–1900 BCE), Late Harappan (1900–1300 BCE). Mature phase is exam-relevant.
Geographical spread
Largest Bronze Age civilization by area — from Sutkagen Dor (Baluchistan) in the west to Alamgirpur (UP) in the east; Manda (J&K) in the north to Daimabad (Maharashtra) in the south.
Urban planning hallmark
Grid-pattern streets, standardized burnt bricks (ratio 4:2:1), underground drainage system — all indicate a centralized authority and civic sense.
Two-part city structure
Most sites had a raised Citadel (west) for administrative/religious buildings and a Lower Town (east) for residential areas.
Economy based on agriculture and trade
Wheat, barley, cotton cultivation; extensive trade with Mesopotamia (called "Meluha" in Mesopotamian texts).
Undeciphered script
Harappan script is pictographic, written right to left, and remains undeciphered — hence called a proto-historic civilization.
Religious practices
No temples found; worship of Mother Goddess, Proto-Shiva (Pashupati seal), nature worship, and tree worship evident from seals and figurines.
Decline theories
No single cause accepted — climate change, river drying (Ghaggar-Hakra), floods, Aryan invasion (now largely discredited), and epidemic diseases are proposed.
Discovery
1921 — Harappa by Daya Ram Sahni; 1922 — Mohenjo-daro by R.D. Banerji
Director General during discovery
Sir John Marshall (Archaeological Survey of India)
Total sites discovered
Over 1,500 (about 925 in India, rest in Pakistan)
Largest site
Rakhigarhi (Haryana) — largest in India
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Constitution of India — General Studies · 12 cards
Constituent Assembly
Formed under the Cabinet Mission Plan (1946), it had 389 members initially (reduced to 299 after partition). Dr. Rajendra Prasad was the permanent Chairman; Dr. B.R. Ambedkar chaired the Drafting Committee.
Preamble as the Soul
The Preamble declares India a Sovereign, Socialist, Secular, Democratic Republic and outlines justice, liberty, equality, and fraternity as core objectives. It is non-justiciable but aids interpretation (Kesavananda Bharati case, 1973).
42nd Amendment (1976)
Added "Socialist," "Secular," and "Integrity" to the Preamble during the Emergency under Indira Gandhi.
Lengthiest Written Constitution
Originally 395 Articles, 22 Parts, 8 Schedules; now 470+ Articles and 12 Schedules—reflects India's diversity and federal complexity.
Blend of Rigidity and Flexibility
Some provisions need simple majority, others require special majority, and a few need ratification by states—neither purely rigid nor purely flexible.
Federal with Unitary Bias
Division of powers between Centre and States, but Centre holds more power during emergencies (strong Centre concept).
Single Citizenship
Unlike the USA, India provides only Indian citizenship—no separate state citizenship.
Independent Judiciary with Judicial Review
Supreme Court can strike down laws violating the Constitution, ensuring checks and balances.
Constitution adopted
26 November 1949 (Constitution Day)
Constitution enforced
26 January 1950 (Republic Day)
Time taken to draft
2 years, 11 months, 18 days
Drafting Committee members
7 (Ambedkar as Chairman)
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General Science — General Studies · 8 cards
Scientific Method
Observation → Hypothesis → Experimentation → Analysis → Conclusion. Science progresses through evidence-based, repeatable inquiry — not belief or authority.
SI Units
Seven base units — metre (length), kilogram (mass), second (time), ampere (current), kelvin (temperature), mole (amount), candela (luminous intensity). All scientific measurements derive from these.
Laws of Motion (Newton)
First law — inertia; Second law — F = ma (force equals mass times acceleration); Third law — every action has an equal and opposite reaction.
Energy Conservation
Energy cannot be created or destroyed, only transformed. Example: electrical energy → light + heat in a bulb.
Atomic Structure
Atom = nucleus (protons + neutrons) + electrons in shells. Atomic number = number of protons; Mass number = protons + neutrons.
Cell Theory
All living organisms are made of cells; cell is the basic structural and functional unit; all cells arise from pre-existing cells.
Homeostasis
The body maintains stable internal conditions (temperature, pH, glucose levels) through feedback mechanisms — critical for survival.
Ecosystem Balance
Energy flows (sun → producers → consumers → decomposers); matter cycles (carbon, nitrogen, water cycles). Disruption causes environmental problems.
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Physics — General Studies · 12 cards
Newton's Three Laws of Motion
First Law (inertia — objects resist change in motion), Second Law (F = ma — force equals mass times acceleration), Third Law (action-reaction pairs are equal and opposite). These explain everything from seatbelt safety to rocket propulsion.
Work, Energy and Power
Work = Force × Distance (in direction of force). Energy is capacity to do work; Power is rate of doing work. Kinetic energy depends on motion (½mv²); Potential energy depends on position (mgh).
Electric Current and Ohm's Law
Current (I) is flow of charge measured in Amperes. Ohm's Law states V = IR (Voltage = Current × Resistance). Resistance is measured in Ohms (Ω).
Magnetic Effect of Current
A current-carrying conductor produces a magnetic field around it (Oersted's discovery). This principle underlies electromagnets, electric motors, and generators.
Heat Transfer Mechanisms
Conduction (through solids by molecular vibration), Convection (through fluids by actual movement), Radiation (through vacuum via electromagnetic waves). All three can occur simultaneously.
Reflection and Refraction of Light
Reflection obeys equal angles of incidence and reflection. Refraction (bending of light) occurs when light changes medium; governs lenses, prisms, and optical instruments.
Sound Wave Properties
Sound needs a medium; cannot travel in vacuum. Speed in air ≈ 343 m/s at 20°C. Sound travels fastest in solids, slowest in gases. Frequency determines pitch; amplitude determines loudness.
Electromagnetic Spectrum
Radio waves → Microwaves → Infrared → Visible light (VIBGYOR) → Ultraviolet → X-rays → Gamma rays. Wavelength decreases and frequency increases left to right.
Speed
Speed = Distance / Time
Acceleration
a = (v − u) / t, where u = initial velocity, v = final velocity
Force
F = ma (Newton's Second Law)
Momentum
p = mv; conserved in collisions
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Current Events — General Studies · 12 cards
Government Schemes
Central schemes (PM Vishwakarma, PM Surya Ghar, Ayushman Bharat expansion) and Tamil Nadu schemes (Kalaignar Magalir Urimai Thogai, Naan Mudhalvan) are important.
Constitutional Amendments
Recent amendments, Bills passed and landmark Supreme Court judgments shape polity-current affairs overlap questions.
India's Foreign Policy
Bilateral visits, multilateral summits (G20, BRICS, SCO, Quad) and treaty signings.
Economic Developments
Union Budget highlights, RBI monetary policy decisions, GST changes, inflation data and GDP growth figures.
International Events
Geopolitical developments, UN resolutions, climate summits (COP meetings) and global conflicts affecting India.
Science and Defence
ISRO missions, DRDO achievements, indigenous defence systems and space technology milestones.
Awards and Honours
Bharat Ratna, Padma awards, Nobel Prize winners, national and international sports awards.
Sports Events
Olympics, Asian Games, Cricket World Cup, Commonwealth Games results and Indian medallists.
India's G20 Presidency
September 2023 Delhi Summit; theme "Vasudhaiva Kutumbakam"; African Union admitted as permanent member
Chandrayaan-3
Soft landing near Moon's south pole (about 69.37°S) on 23 August 2023; Vikram lander and Pragyan rover
Aditya-L1 Mission
India's first solar observatory; launched September 2023; reached L1 point January 2024
Women's Reservation Act
106th Constitutional Amendment (Nari Shakti Vandan Adhiniyam) providing 33% reservation in Lok Sabha and State Assemblies
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Economic Events — General Studies · 12 cards
Union Budget
Annual financial statement presented on February 1; contains Revenue Budget and Capital Budget; key terms include fiscal deficit (total borrowing), revenue deficit (current expenditure minus current revenue), and primary deficit (fiscal deficit minus interest payments).
RBI Monetary Policy
Announced bi-monthly by the Monetary Policy Committee (MPC); repo rate is the rate at which RBI lends to banks; reverse repo is the rate at which RBI borrows from banks; CRR and SLR control liquidity in the banking system.
GDP and Growth Rate
Gross Domestic Product measures total economic output; India uses base year 2011–12 for calculation; NSO (National Statistical Office) releases GDP estimates.
Inflation Indices
CPI (Consumer Price Index) measures retail inflation — RBI targets 4% with a tolerance band of 2–6%; WPI (Wholesale Price Index) measures wholesale prices.
Foreign Trade
Current Account Deficit (CAD) occurs when imports exceed exports plus remittances; Balance of Payments includes current account and capital account; forex reserves are held by RBI.
Credit Ratings and Rankings
Agencies like Moody's, S&P, and Fitch rate India's sovereign creditworthiness; global indices like Ease of Doing Business (discontinued), Global Hunger Index, and Human Development Index rank India.
GST Council
Constitutional body under Article 279A; decides GST rates and rules; chaired by Union Finance Minister with state finance ministers as members.
Trade Agreements
FTAs (Free Trade Agreements) reduce tariffs between countries; India has signed FTAs with UAE, Australia, and is negotiating with UK and EU.
Union Budget 2024–25
Presented by FM Nirmala Sitharaman; fiscal deficit target 4.9% of GDP; capital expenditure at ₹11.11 lakh crore
RBI Repo Rate
6.5% (as of late 2024); unchanged for multiple consecutive meetings
India's GDP Growth
Estimated around 7% for FY 2024–25 (among fastest-growing major economies)
Inflation Target
RBI targets 4% CPI inflation (flexible inflation targeting since 2016)
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Five-Year Plans and NITI Aayog — General Studies · 12 cards
Planning Commission (1950-2014)
Extra-constitutional body established by a Cabinet Resolution on 15 March 1950, with the Prime Minister as Chairman. It formulated Five-Year Plans and allocated resources to states.
Five-Year Plan Model
Adopted from the Soviet Union, these plans set growth targets, prioritized sectors, and directed public investment. India completed 12 Five-Year Plans between 1951 and 2017.
Nehru-Mahalanobis Model
The intellectual foundation of early plans emphasizing heavy industries, import substitution, and public sector dominance (especially Second Plan onwards).
NITI Aayog (2015)
National Institution for Transforming India, replaced Planning Commission on 1 January 2015. Functions as a think tank rather than a fund-allocating body.
Cooperative Federalism
NITI Aayog's guiding principle—states are equal partners in development, not mere implementers of central plans.
Indicative Planning
Post-1991 shift from directive planning (telling private sector what to do) to indicative planning (providing guidelines and incentives).
Vision Documents
NITI Aayog prepares 15-year Vision Document, 7-year Strategy, and 3-year Action Agenda instead of rigid Five-Year Plans.
First
Period: 1951-56 · Focus Area: Agriculture · Key Points: Based on Harrod-Domar model; community development; target 2.1%, achieved 3.6%
Second
Period: 1956-61 · Focus Area: Heavy Industries · Key Points: Mahalanobis model; steel plants at Bhilai, Durgapur, Rourkela
Third
Period: 1961-66 · Focus Area: Self-reliance · Key Points: Failed due to wars (1962, 1965) and drought; called "Plan Holiday" followed
Fourth
Period: 1969-74 · Focus Area: Growth with Stability · Key Points: Green Revolution impact; bank nationalization (1969)
Fifth
Period: 1974-79 · Focus Area: Poverty Removal · Key Points: Garibi Hatao; terminated one year early by Janata government
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Early Phase of Congress — General Studies · 12 cards
Formation of INC (1885)
Founded by A.O. Hume, a retired British civil servant, with the first session held at Gokuldas Tejpal Sanskrit College, Bombay under President W.C. Bonnerjee. Initial aim was to provide a "safety valve" for rising discontent.
Moderate Phase (1885–1905)
Leaders believed in British sense of justice and fair play. They used petitions, prayers, and constitutional agitation — earning the criticism of being "political mendicants."
Three P's of Moderates
Prayer, Petition, and Protest — their primary methods of seeking reforms within the British constitutional framework.
Drain Theory
Dadabhai Naoroji's economic critique explaining how wealth was being drained from India to Britain through salaries, pensions, and home charges — exposed in his book "Poverty and Un-British Rule in India."
Rise of Extremism (1905–1907)
Triggered by Lord Curzon's Partition of Bengal (1905), younger leaders rejected slow constitutional methods for Swaraj, Swadeshi, Boycott, and National Education.
Surat Split (1907)
Congress split at Surat session over the election of president. Extremists wanted Lala Lajpat Rai or Tilak; Moderates chose Rash Behari Ghosh. The split weakened the national movement until the 1916 Lucknow Congress session reunited both factions.
Lal-Bal-Pal
The trio of Lala Lajpat Rai, Bal Gangadhar Tilak, and Bipin Chandra Pal who led the Extremist movement with the slogan "Swaraj is my birthright and I shall have it."
Bengal Partition (1905)
Curzon divided Bengal ostensibly for administrative efficiency but actually to weaken Bengali nationalism by separating Hindu-majority West Bengal from Muslim-majority East Bengal.
Period
Moderates: 1885–1905 · Extremists: 1905–1919
Leaders
Moderates: Dadabhai Naoroji, Gokhale, Surendranath Banerjea, Pherozeshah Mehta · Extremists: Tilak, Lajpat Rai, Bipin Chandra Pal, Aurobindo Ghosh
Methods
Moderates: Constitutional agitation, petitions, resolutions · Extremists: Boycott, Swadeshi, passive resistance, mass mobilization
Goal
Moderates: Self-government within British Empire · Extremists: Complete Swaraj (self-rule)
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Monsoon, Rainfall and Climate — General Studies · 12 cards
Monsoon Definition
Derived from Arabic "mausim" (season), monsoon refers to the seasonal reversal of wind direction causing wet and dry seasons. India experiences southwest monsoon (June–September) and northeast monsoon (October–December).
Differential Heating Mechanism
Land heats faster than sea in summer, creating a low-pressure zone over the Indian subcontinent (Thar Desert region). High pressure over the Indian Ocean drives moisture-laden winds toward land.
Inter-Tropical Convergence Zone (ITCZ)
A low-pressure belt near the equator that shifts northward over the Ganga Plain during summer, attracting southwest monsoon winds. Also called the "monsoon trough."
Somali Jet and Tropical Easterly Jet
The Somali Jet (low-level) brings moisture from East Africa across the Arabian Sea. The Tropical Easterly Jet (upper level) helps maintain the monsoon circulation.
Orographic Rainfall
Mountains force moist air upward, causing cooling and precipitation. Western Ghats, Eastern Himalayas, and Khasi-Garo hills receive heavy orographic rainfall.
Rain Shadow Effect
Leeward sides of mountains receive scanty rainfall. Deccan Plateau lies in the rain shadow of Western Ghats; Ladakh lies in the rain shadow of the Himalayas.
Tamil Nadu's Anomaly
Tamil Nadu receives bulk of its rainfall from the northeast monsoon (October–December) because it lies parallel to the southwest monsoon and in the rain shadow of Western Ghats.
El Niño and La Niña
El Niño (warming of Pacific waters) weakens the Indian monsoon causing droughts. La Niña (cooling) strengthens monsoon, often causing floods.
Annual average rainfall of India
118 cm (approximately 1180 mm)
Highest rainfall station
Mawsynram, Meghalaya (about 1187 cm annually)
Lowest rainfall region
Western Rajasthan (less than 25 cm)
Southwest monsoon contribution
About 75% of India's annual rainfall
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Guptas and Post-Guptas — General Studies · 12 cards
Gupta political system
Decentralized administration with feudatory chiefs; kings adopted titles like Maharajadhiraja (king of kings) and Paramabhattaraka (supreme lord).
Land grants (Agrahara and Brahmadeya)
Grants to Brahmins and temples became widespread, marking the beginning of Indian feudalism.
Gupta coinage
Gold coins called Dinars showcased royal achievements; Samudragupta's coins depict him playing the veena.
Nagara style of temple architecture
North Indian temple style with a curvilinear shikhara (tower) emerged during this period.
Sanskrit as court language
Sanskrit became the official language; Prakrit declined in royal patronage.
Decline factors
Hun invasions, weak successors after Skandagupta, rise of feudatories, and economic decline due to reduced trade.
Harsha's empire (606–647 CE)
Last great empire of ancient North India; known through Bana's Harshacharita and Xuanzang's accounts.
Tripartite struggle
Post-Gupta era saw conflict between Palas, Pratiharas, and Rashtrakutas for control of Kannauj.
Sri Gupta
Period: c. 240–280 CE · Key Achievement: Founded Gupta dynasty
Chandragupta I
Period: 320–335 CE · Key Achievement: First independent ruler; Lichhavis marriage alliance
Samudragupta
Period: 335–375 CE · Key Achievement: "Napoleon of India"; Allahabad Pillar inscription
Chandragupta II
Period: 375–415 CE · Key Achievement: Defeated Shakas; Navratnas at court
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Union, State and Union Territory — General Studies · 12 cards
Article 1
declares India as a "Union of States"—the term "Union" was chosen deliberately to indicate that States cannot secede; the federation is indestructible.
Single Citizenship
distinguishes Indian federalism from the USA; there is no separate State citizenship regardless of domicile.
Seventh Schedule
contains three lists: Union List (100 subjects—defence, atomic energy, foreign affairs), State List (61 subjects—police, public health, land), and Concurrent List (52 subjects—education, forests, criminal law).
Residuary Powers
vest exclusively with Parliament under Article 248—any matter not in any list falls under Union jurisdiction.
Article 3
empowers Parliament to form new States, alter boundaries, or change names by a simple majority; the concerned State Legislature's opinion is sought but not binding.
Union Territories
are created for administrative convenience, strategic importance, or distinct identity (e.g., Andaman & Nicobar, Lakshadweep, Delhi, Puducherry).
Lieutenant Governor vs Administrator
Delhi, Puducherry and Jammu & Kashmir have elected legislatures with an LG; smaller UTs like Chandigarh, Dadra & Nagar Haveli and Daman & Diu, Lakshadweep have Administrators without legislature; Ladakh and Andaman & Nicobar Islands have an LG but no legislature.
Article 239AA
grants special status to Delhi as National Capital Territory with a legislative assembly, but subjects like police, public order, and land remain with the Centre.
Number of States
28 (Telangana newest, 2014)
Number of UTs
8 (Jammu & Kashmir and Ladakh created 2019)
Union List entries
100 (originally 97)
State List entries
61 (originally 66)
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Chemistry — General Studies · 12 cards
Element vs Compound
An element contains only one type of atom (e.g., oxygen, iron). A compound contains two or more elements chemically bonded in a fixed ratio (e.g., water H₂O, salt NaCl).
Acids
Substances that release hydrogen ions (H⁺) in water. They taste sour, turn blue litmus red, and have pH less than 7. Examples: hydrochloric acid (HCl), sulphuric acid (H₂SO₄), acetic acid (vinegar).
Bases
Substances that release hydroxide ions (OH⁻) in water. They taste bitter, feel soapy, turn red litmus blue, and have pH greater than 7. Examples: sodium hydroxide (NaOH), calcium hydroxide (lime water).
Salts
Formed when an acid reacts with a base (neutralization). The general equation: Acid + Base → Salt + Water. Example: HCl + NaOH → NaCl + H₂O.
pH Scale
Measures acidity or alkalinity on a scale of 0–14. pH 7 is neutral (pure water). Below 7 is acidic; above 7 is basic/alkaline.
Fertilizers
Chemical or organic substances added to soil to supply essential nutrients (N, P, K) for plant growth. They enhance crop yield but can cause water pollution if overused.
Pesticides
Chemicals used to kill or control pests. Categories include insecticides, herbicides, fungicides, and rodenticides. Overuse leads to bioaccumulation and environmental damage.
Acid
Name: Hydrochloric acid · Chemical Formula: HCl · Key Use/Property: Digestive juice in stomach
Base
Name: Sodium hydroxide · Chemical Formula: NaOH · Key Use/Property: Caustic soda, soap making
Salt
Name: Sodium chloride · Chemical Formula: NaCl · Key Use/Property: Common/table salt
Fertilizer
Name: Urea · Chemical Formula: CO(NH₂)₂ · Key Use/Property: 46% nitrogen, most used N-fertilizer
Pesticide
Name: DDT · Chemical Formula: Dichlorodiphenyltrichloroethane · Key Use/Property: Banned insecticide, persistent
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International Events — General Studies · 12 cards
Multilateralism vs Bilateralism
India engages through multilateral forums (UN, G20, BRICS) and bilateral relations (India-US, India-Japan). Know the difference and key groupings.
India's Neighbourhood First Policy
Priority diplomatic engagement with SAARC nations (Nepal, Bangladesh, Sri Lanka, Bhutan, Maldives). Critical for regional stability.
Act East Policy
Strengthening ties with ASEAN and East Asian nations—replaces the older "Look East Policy." Focus on trade, connectivity, and strategic partnerships.
Strategic Autonomy
India's foreign policy principle of maintaining independent positions without aligning permanently with any bloc (neither fully US-aligned nor China-aligned).
QUAD (Quadrilateral Security Dialogue)
India, USA, Japan, Australia—focuses on free and open Indo-Pacific. Not a formal military alliance but strategic convergence.
BRICS and SCO
BRICS (Brazil, Russia, India, China, South Africa) expanded in 2024 to include new members. SCO (Shanghai Cooperation Organisation) focuses on Central Asian security.
G20
India held G20 Presidency in 2023 (December 2022 to November 2023). New Delhi Declaration adopted at the September 2023 Summit.
UN Security Council
India seeks permanent membership. Currently has been a non-permanent member multiple times (most recently 2021–22).
G20 Summit 2023
Held in New Delhi (September 9–10, 2023). Theme: "Vasudhaiva Kutumbakam." African Union admitted as permanent member. New Delhi Declaration adopted.
BRICS Expansion 2024
Six new members invited at Johannesburg Summit (2023): Iran, Saudi Arabia, UAE, Egypt, Ethiopia, Argentina (Argentina later declined).
SCO Members
India, China, Russia, Pakistan, Kazakhstan, Kyrgyzstan, Tajikistan, Uzbekistan, Iran (joined 2023), Belarus (joined 2024).
QUAD Members
India, USA, Japan, Australia. Focus: Indo-Pacific security, vaccine initiative, critical technologies.
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Taxation and Public Finance — General Studies · 12 cards
Tax Classification
Taxes are either Direct (burden cannot be shifted—Income Tax, Corporate Tax, Wealth Tax) or Indirect (burden shifted to consumer—GST, Customs Duty). Direct taxes are progressive; indirect taxes tend to be regressive.
Constitutional Division
Article 246 with Seventh Schedule divides taxing powers—Union List (List I), State List (List II), and Concurrent List (List III has almost no tax entries; Entry 44 covers stamp duties, excluding rates). Post-GST, Article 246A grants concurrent power for GST to both Centre and States.
GST as One Nation One Tax
Replaced 17 indirect taxes and 13 cesses. Implemented from 1 July 2017 through the 101st Constitutional Amendment Act, 2016. It is a destination-based, multi-stage, comprehensive tax.
Fiscal Policy
Government's use of taxation and expenditure to influence the economy. Expansionary policy (more spending, lower taxes) boosts demand; contractionary policy controls inflation.
Monetary Policy
RBI's control over money supply and interest rates through tools like Repo Rate, CRR, SLR, and Open Market Operations. Complements fiscal policy but is independent of government.
Public Debt
Internal debt (within India—market loans, treasury bills) and external debt (from foreign governments, IMF, World Bank). FRBM Act aims to control debt accumulation.
Consolidated Fund of India (Article 266)
All revenues, loans raised, and loan recoveries go here. Money can be withdrawn only with Parliamentary approval.
Contingency Fund of India (Article 267)
₹30,000 crore corpus (raised from ₹500 crore by the Finance Act, 2021) with the President for unforeseen urgent expenditure before Parliamentary sanction.
Fiscal Deficit
Total Expenditure − Total Receipts (excluding borrowings)
Revenue Deficit
Revenue Expenditure − Revenue Receipts
Primary Deficit
Fiscal Deficit − Interest Payments
Effective Revenue Deficit
Revenue Deficit − Grants for capital asset creation
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Satyagraha and Mass Movements — General Studies · 10 cards
Satyagraha philosophy
"Truth-force" or "soul-force"—nonviolent resistance where the protester suffers willingly to convert the oppressor. Gandhi first tested this in South Africa (1906–14) and in India at Champaran (1917), Kheda (1918), and Ahmedabad (1918).
Non-Cooperation Movement (1920–22)
First all-India mass movement under Gandhi. Indians boycotted British institutions—schools, courts, councils, titles, foreign cloth. Suspended after Chauri Chaura violence (February 1922) where 22 policemen were killed.
Civil Disobedience Movement (1930–34)
Defiance of specific laws, especially the salt tax. Dandi March (March–April 1930) was the symbolic trigger. Unlike Non-Cooperation, it involved breaking laws, not just boycotting.
Quit India Movement (1942)
"Do or Die" call on 8 August 1942. Most radical phase—demanded immediate British withdrawal during World War II. Entire Congress leadership arrested overnight; leaderless masses turned violent in parts.
Gandhi-Irwin Pact (1931)
Ended Civil Disobedience temporarily. Congress participated in Second Round Table Conference. Pact criticised for gaining little but showed British recognition of Congress as negotiating partner.
Parallel governments (1942)
During Quit India, underground governments emerged at Satara, Ballia, Tamluk, and Midnapore—showing depth of nationalist sentiment.
Role of women
Sarojini Naidu led Dharasana Salt Satyagraha raid. Women participated in picketing, salt-making, and courting arrest in unprecedented numbers during Civil Disobedience.
Non-Cooperation
Period: 1920–22 · Trigger: Jallianwala Bagh (1919) + Khilafat issue · Key Slogan/Symbol: Swaraj in one year; Charkha, Khadi · Withdrawal/End: Chauri Chaura incident (Feb 1922)
Civil Disobedience
Period: 1930–34 · Trigger: Salt Tax; Purna Swaraj resolution (Dec 1929) · Key Slogan/Symbol: Dandi March; Salt as symbol · Withdrawal/End: Gandhi-Irwin Pact (1931); resumed & ended 1934
Quit India
Period: Aug 1942–43 · Trigger: Failure of Cripps Mission; WWII context · Key Slogan/Symbol: "Do or Die"; "Quit India" · Withdrawal/End: Brutal suppression; ended by 1944
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Geography of India — General Studies · 12 cards
Physiographic Divisions
India has six major divisions—Northern Mountains (Himalayas), Northern Plains (Indo-Gangetic), Peninsular Plateau (Deccan), Coastal Plains (Eastern & Western), Desert (Thar), and Islands (Andaman-Nicobar, Lakshadweep).
Monsoon Mechanism
The Indian monsoon is driven by differential heating of land and sea, causing pressure reversals. Southwest monsoon (June–September) brings 75% of annual rainfall; Northeast monsoon (October–December) is crucial for Tamil Nadu.
Drainage Systems
Himalayan rivers are perennial (snow-fed); Peninsular rivers are seasonal (rain-fed). West-flowing rivers (Narmada, Tapi) form estuaries; east-flowing rivers (Godavari, Krishna, Kaveri) form deltas.
Soil Types
Six major soils—Alluvial (most fertile, Northern Plains), Black/Regur (cotton, Deccan), Red (Tamil Nadu, Odisha), Laterite (Kerala, heavy rainfall areas), Desert (sandy, saline), Mountain (thin, acidic).
Natural Vegetation Zones
Tropical Evergreen (Western Ghats), Tropical Deciduous (largest area), Thorn Forests (Rajasthan), Montane Forests (Himalayas), Mangroves (Sundarbans).
Mineral Distribution
Iron ore concentrated in Jharkhand-Odisha-Chhattisgarh belt; Coal in Damodar Valley; Petroleum in Mumbai High, Assam, Krishna-Godavari basin; Tamil Nadu has lignite (Neyveli), limestone, and magnesite.
Population Pattern
India is the world's most populous country. Uttar Pradesh is most populous state; highest density in Bihar; lowest density in Arunachal Pradesh. Tamil Nadu is highly urbanized (~50%).
Area & Boundaries
India: 32.87 lakh km²; shares land border with 7 countries (Pakistan, Afghanistan, China, Nepal, Bhutan, Bangladesh, Myanmar); coastline 11,098.81 km (revised official figure, 2025; older figure 7,516.6 km)
Extreme Points
Northernmost: Indira Col (Siachen); Southernmost: Indira Point (Great Nicobar); Easternmost: Kibithu (Arunachal); Westernmost: Guhar Moti (Gujarat)
Major Passes
Karakoram Pass (5,540 m; no motorable road), Khyber Pass (Pakistan border), Nathu La & Jelep La (Sikkim-Tibet), Shipki La (HP-Tibet), Bom Di La (Arunachal)
Highest Peaks
K2 (8,611 m, highest in India), Kanchenjunga (8,586 m, highest peak on Indian soil; on the India–Nepal border), Nanda Devi (highest entirely in India proper)
Longest Rivers
Ganga (2,525 km in India), Godavari (1,465 km, "Dakshin Ganga"), Brahmaputra (origin: Mansarovar, called Tsangpo in Tibet)
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Water Resources and Rivers — General Studies · 12 cards
Drainage Basin vs Watershed
A drainage basin is the total area drained by a river and its tributaries; a watershed is a smaller unit—the elevated boundary separating two drainage systems.
Himalayan vs Peninsular Rivers
Himalayan rivers are perennial (fed by glaciers and rain), have large basins, and form meanders and ox-bow lakes. Peninsular rivers are seasonal (rain-fed), have smaller basins, and flow in relatively straight courses through hard rock.
Drainage Patterns
Dendritic (tree-like, most common), Trellis (parallel tributaries), Radial (rivers flowing outward from a central peak), and Rectangular (right-angle bends due to jointed rocks).
East-flowing vs West-flowing Rivers
Most peninsular rivers flow eastward due to the eastward tilt of the Deccan Plateau (higher in the west). Only Narmada and Tapi flow westward through rift valleys.
Multipurpose River Valley Projects
Dams serving irrigation, hydropower, flood control, navigation, and drinking water—called "Temples of Modern India" by Nehru.
Interstate River Water Disputes
Constitutional provision under Article 262 excludes Supreme Court jurisdiction; Parliament can create tribunals (e.g., Cauvery Water Disputes Tribunal).
Interlinking of Rivers
National River Linking Project aims to transfer water from surplus to deficit basins through canals—Ken-Betwa link is the first approved project.
Ganga
Origin: Gangotri Glacier · Length (km): 2,525 · Major Tributaries: Yamuna, Son, Ghaghara, Gandak, Kosi · Drains Into: Bay of Bengal
Brahmaputra
Origin: Angsi Glacier (Tibet) · Length (km): 2,900 (total) · Major Tributaries: Dibang, Lohit, Subansiri · Drains Into: Bay of Bengal
Indus
Origin: Mansarovar (Tibet) · Length (km): 2,880 (total) · Major Tributaries: Jhelum, Chenab, Ravi, Beas, Sutlej · Drains Into: Arabian Sea
Godavari
Origin: Trimbakeshwar (Nashik) · Length (km): 1,465 · Major Tributaries: Pranhita, Indravati, Manjira · Drains Into: Bay of Bengal
Krishna
Origin: Mahabaleshwar · Length (km): 1,400 · Major Tributaries: Bhima, Tungabhadra, Koyna · Drains Into: Bay of Bengal
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Fundamental Rights, Duties, DPSPs — General Studies · 12 cards
Definition of State (Article 12)
"State" includes Government of India, Parliament, State Governments, State Legislatures, local authorities, and other authorities under government control. Private bodies are generally not "State" unless performing public functions.
Justiciability distinction
Fundamental Rights are justiciable (enforceable through courts under Articles 32 and 226), while DPSPs are non-justiciable (cannot be enforced through courts but are "fundamental in governance").
Article 13 — Law inconsistent with FRs
Any law violating Fundamental Rights is void to the extent of violation. Pre-constitutional laws continue only if consistent with FRs.
Reasonable restrictions
Most FRs are not absolute. Article 19(2)-(6) lists grounds for restrictions — sovereignty, security, public order, decency, morality, contempt of court, defamation, incitement to offence.
FR-DPSP harmony
Kesavananda Bharati (1973) held that FRs and DPSPs are complementary, not competing. Minerva Mills (1980) confirmed both are essential features of the basic structure.
Fundamental Duties added later
Part IVA (Article 51A) was added by the 42nd Amendment (1976) based on Swaran Singh Committee recommendations. Originally 10 duties; 11th duty added by 86th Amendment (2002).
Waiver not possible
Fundamental Rights cannot be waived by citizens (Basheshar Nath v. CIT, 1959). They exist against the State, not against private individuals (except Articles 15, 17, 23, 24).
Right to Equality
Articles: 14-18 · Key Provisions: Equality before law (14), prohibition of discrimination (15), equality of opportunity (16), abolition of untouchability (17), abolition of titles (18)
Right to Freedom
Articles: 19-22 · Key Provisions: Six freedoms (19), protection against conviction (20), protection of life and liberty (21), right to education (21A), protection against arrest (22)
Right against Exploitation
Articles: 23-24 · Key Provisions: Prohibition of traffic in humans and forced labour (23), prohibition of child labour in hazardous employment (24)
Right to Freedom of Religion
Articles: 25-28 · Key Provisions: Freedom of conscience (25), manage religious affairs (26), no religious tax (27), no religious instruction in State schools (28)
Cultural and Educational Rights
Articles: 29-30 · Key Provisions: Protection of minorities' interests (29), minorities' right to establish institutions (30)
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Sports — General Studies · 12 cards
Olympic Games
Held every 4 years; Paris 2024 was the latest Summer Olympics. India's best performance came at Tokyo 2020 (7 medals). Know recent Indian medallists by sport.
Asian Games
Asia's largest multi-sport event held every 4 years. Hangzhou 2022 (held in 2023) saw India win a record 107 medals. Next edition: Aichi-Nagoya 2026.
Commonwealth Games
Held every 4 years among Commonwealth nations. Birmingham 2022 was the last edition; future editions are under restructuring.
Cricket World Cups
ICC organises ODI World Cup (every 4 years), T20 World Cup (every 2 years). India hosted ODI World Cup 2023; India won T20 World Cup 2024 (USA/West Indies).
FIFA World Cup
Football's premier event every 4 years. Qatar 2022 saw Argentina win; 2026 will be hosted by USA-Canada-Mexico.
National Sports Awards
Traditionally presented on National Sports Day (August 29, Dhyan Chand's birth anniversary); recent editions came later (2024 awards announced 2 January 2025). Hierarchy: Major Dhyan Chand Khel Ratna (highest) → Arjuna Award → Dronacharya Award (coaches) → Dhyan Chand Award (lifetime achievement).
Khelo India Programme
Government initiative to promote grassroots sports; includes Khelo India Youth Games and Khelo India University Games.
Sports Authority of India (SAI)
Apex body under Ministry of Youth Affairs and Sports for training and infrastructure.
Summer Olympics
Latest Edition: Paris 2024 · Venue: France · India/Winner Highlight: India: 6 medals (1 silver, 5 bronze)
Cricket ODI World Cup
Latest Edition: 2023 · Venue: India · India/Winner Highlight: Winner: Australia; India runner-up
Cricket T20 World Cup
Latest Edition: 2024 · Venue: USA/West Indies · India/Winner Highlight: Winner: India
Hockey World Cup (Men)
Latest Edition: 2023 · Venue: India · India/Winner Highlight: Winner: Germany
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Banking and Financial Markets — General Studies · 12 cards
Reserve Bank of India (RBI)
is India's central bank, established in 1935 under the RBI Act 1934, headquartered in Mumbai. It is the banker to banks, banker to government, and sole authority for currency issue.
Monetary Policy
refers to RBI's management of money supply and interest rates using tools like Repo Rate, Reverse Repo Rate, CRR, and SLR to control inflation and ensure economic stability.
Scheduled Banks
are banks listed in the Second Schedule of the RBI Act, meeting criteria of paid-up capital (₹5 lakh minimum) and operating in ways not detrimental to depositors' interests.
SEBI (Securities and Exchange Board of India)
regulates securities markets, protects investor interests, and promotes market development. Established in 1988, it gained statutory powers through SEBI Act 1992.
Financial Inclusion
means ensuring access to affordable financial services (banking, credit, insurance, pension) to all sections, especially weaker and low-income groups.
Priority Sector Lending
requires banks to allocate 40% of lending to sectors like agriculture, MSMEs, education, housing, and weaker sections.
Non-Performing Asset (NPA)
is a loan where principal or interest remains unpaid for more than 90 days.
Payment Banks
can accept deposits up to ₹2 lakh and provide payment services but cannot issue loans or credit cards.
RBI Establishment
1 April 1935, nationalised in 1949
RBI Headquarters
Mumbai (originally Kolkata until 1937)
Current RBI Governor
Sanjay Malhotra (as of April 2025)
SEBI Statutory Status
SEBI Act 1992
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Militant and Revolutionary Activities — General Studies · 12 cards
Two streams of nationalism
Revolutionaries rejected the idea that non-violence alone could end British rule; they drew inspiration from Irish, Russian, and Italian revolutionary movements.
Swadeshi Movement (1905-1908)
as catalyst: The Partition of Bengal sparked the first organized revolutionary activity—secret societies, bomb-making, and political assassinations emerged during this period.
Revolutionary ideology
Influenced by socialism, anarchism, and nationalism; leaders like Bhagat Singh evolved from mere nationalists to socialist revolutionaries who wanted social transformation alongside political freedom.
Hindustan Republican Association (HRA)
formed in 1924: Later renamed Hindustan Socialist Republican Association (HSRA) in 1928 to emphasize socialist goals—key figures included Bhagat Singh, Chandrashekhar Azad, Sukhdev, and Rajguru.
Forward Bloc and INA
Subhas Bose's departure from Congress led to the Forward Bloc (1939) and eventually the Indian National Army, which attempted armed liberation with Axis powers' support during World War II.
Regional revolutionary organizations
Anushilan Samiti and Jugantar in Bengal, Abhinav Bharat in Maharashtra, and Ghadar Party among overseas Indians in North America.
Anushilan Samiti
Year: 1902 · Key Details: Founded in Calcutta by Pramathanath Mitra; two branches—Dhaka and Calcutta
Abhinav Bharat
Year: 1904 · Key Details: Founded by V.D. Savarkar in Maharashtra
Muzaffarpur bombing
Year: 1908 · Key Details: Khudiram Bose and Prafulla Chaki targeted Magistrate Kingsford; Khudiram executed at age 18
Ghadar Party
Year: 1913 · Key Details: Founded in San Francisco by Lala Har Dayal; published "Ghadar" newspaper
Kakori Train Robbery
Year: 1925 · Key Details: HRA members looted government treasury; Ram Prasad Bismil, Ashfaqullah Khan executed
Lahore Conspiracy Case
Year: 1929 · Key Details: Bhagat Singh, Sukhdev, Rajguru hanged on March 23, 1931
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Soils, Minerals and Forests — General Studies · 11 cards
Soil formation
depends on five factors: parent rock, climate, topography, organic matter and time—remembered as PCTO-T.
Zonal soils
develop due to climatic conditions (black, red, laterite), while azonal soils result from depositional processes (alluvial, desert).
Forest classification
in India follows climatic zones: tropical (wet/dry), montane (temperate/alpine) and coastal (mangroves).
Minerals are non-renewable
strategic planning for conservation and alternative materials is a recurring policy theme.
Forest Rights Act 2006
recognizes traditional forest-dwellers' rights, balancing conservation with livelihood security.
Alluvial
Region: Indo-Gangetic plains, coastal deltas · Characteristics: Rich in potash, deficient in nitrogen · Crops: Rice, wheat, sugarcane
Black (Regur)
Region: Deccan trap—Maharashtra, MP, Gujarat · Characteristics: High moisture retention, rich in lime, iron · Crops: Cotton, soybean, groundnut
Red
Region: Tamil Nadu, Karnataka, Odisha, Chhattisgarh · Characteristics: Rich in iron, deficient in nitrogen and humus · Crops: Millets, pulses, tobacco
Laterite
Region: Western Ghats, Eastern Ghats, NE India · Characteristics: Acidic, poor in nutrients, suited for plantation · Crops: Tea, coffee, cashew
Desert
Region: Rajasthan, Gujarat (Kutch) · Characteristics: Sandy, saline, low moisture · Crops: Bajra, guar, date palm
Mountain
Region: Himalayan region · Characteristics: Rich in humus, acidic · Crops: Tea, fruits, spices
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Mughals — General Studies · 12 cards
Foundation by Babur (1526)
Babur, a Timurid prince from Fergana, defeated Ibrahim Lodi at the First Battle of Panipat using superior cavalry tactics and gunpowder technology (artillery and matchlocks), establishing Mughal rule in India.
Consolidation under Akbar
Akbar's reign (1556–1605) transformed a fragile kingdom into a stable empire through military conquest, religious tolerance (Sulh-i-Kul), and administrative reforms including the Mansabdari and Zabti systems.
Mansabdari System
A graded military-cum-civil administrative system where officials (mansabdars) held ranks (zat for personal status, sawar for cavalry obligation). This unified hierarchy controlled the nobility and military.
Revenue Administration
Akbar's finance minister Todar Mal introduced the Zabti/Dahsala system — land measurement, soil classification, and average revenue calculation over 10 years to fix fair land tax.
Religious Policy Evolution
Mughal religious policy ranged from Akbar's syncretism (Din-i-Ilahi) to Aurangzeb's orthodoxy (reimposition of Jizya in 1679), significantly affecting Hindu-Muslim relations.
Jagirdari System
Land assignments (jagirs) given to mansabdars in lieu of cash salary to collect revenue — this system's crisis contributed to Mughal decline.
Cultural Synthesis
The Mughals created a distinctive Indo-Islamic culture blending Persian, Central Asian, and Indian elements in architecture, painting, music, and literature.
Babur
Reign: 1526–1530 · Key Events/Achievements: First Battle of Panipat (1526); Battle of Khanwa (1527) vs Rana Sanga; wrote Baburnama in Chagatai Turkish
Humayun
Reign: 1530–1540, 1555–1556 · Key Events/Achievements: Lost throne to Sher Shah Suri; regained with Persian help; built Dinpanah
Akbar
Reign: 1556–1605 · Key Events/Achievements: Second Battle of Panipat (1556); abolished Jizya (1564); founded Fatehpur Sikri; Navratnas at court
Jahangir
Reign: 1605–1627 · Key Events/Achievements: "Chain of Justice"; patronized painting; Nur Jahan's influence; executed Guru Arjan Dev
Shah Jahan
Reign: 1628–1658 · Key Events/Achievements: Built Taj Mahal, Red Fort, Jama Masjid; "Golden Age of Mughal architecture"; Peacock Throne
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Executive — General Studies · 12 cards
Parliamentary Executive
India adopted the British model where the real executive power rests with the Council of Ministers, while the President/Governor acts on their "aid and advice" (Article 74 and 163).
President as Head of State
The President is the first citizen, supreme commander of armed forces, and represents India in international affairs but exercises powers only on ministerial advice (except discretionary situations).
Governor as State Head
Appointed by the President (not elected), the Governor acts as the constitutional head of the state and also as an agent of the Centre in certain matters.
Council of Ministers — Collective Responsibility
Ministers are collectively responsible to the Lok Sabha (Article 75) or State Legislative Assembly (Article 164). If the government loses majority, the entire council resigns.
Individual Responsibility
Each minister is individually responsible to the President/Governor and holds office "during the pleasure of" the President/Governor.
Prime Minister as the Keystone
The PM is the link between President and Council of Ministers, head of the cabinet, leader of the majority party, and the real centre of executive power.
Governor's Discretion
Unlike the President, the Governor has certain discretionary powers — reservation of bills, recommending President's Rule, appointing CM when no clear majority exists.
Ordinance-Making Power
Both President (Article 123) and Governor (Article 213) can promulgate ordinances when the legislature is not in session, having the same force as law.
President
Key Articles: 52–62 · Tenure/Removal: 5 years; removed by impeachment (Art. 61)
Vice-President
Key Articles: 63–71 · Tenure/Removal: 5 years; removed by Rajya Sabha resolution agreed to by Lok Sabha (Art. 67(b))
Governor
Key Articles: 153–162 · Tenure/Removal: 5 years; holds office during President's pleasure
PM & Council of Ministers
Key Articles: 74–75 (Centre), 163–164 (State) · Tenure/Removal: No fixed term; based on Lok Sabha/Assembly confidence
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Zoology — General Studies · 12 cards
Five Kingdom Classification
Animals belong to Kingdom Animalia, characterised by being multicellular, eukaryotic, heterotrophic organisms lacking cell walls.
Phylum hierarchy
Animals are classified from Kingdom → Phylum → Class → Order → Family → Genus → Species. "King Philip Came Over For Good Soup" is a useful mnemonic.
Vertebrates vs Invertebrates
Vertebrates possess a backbone (fish, amphibians, reptiles, birds, mammals); invertebrates lack one (insects, molluscs, worms). About 95% of animal species are invertebrates.
Evolution through Natural Selection
Darwin's theory states that organisms with favourable variations survive and reproduce more successfully, passing traits to offspring over generations.
Mendelian Genetics
Traits are inherited through discrete units (genes). Dominant alleles mask recessive ones. Monohybrid cross ratio is 3:1; dihybrid cross ratio is 9:3:3:1.
DNA as genetic material
DNA (deoxyribonucleic acid) carries hereditary information. It has a double helix structure discovered by Watson and Crick (1953).
Homeostasis
The human body maintains internal stability (temperature, pH, glucose levels) despite external changes — a fundamental physiological principle.
Organ systems work together
Digestion provides nutrients, circulation transports them, respiration supplies oxygen, excretion removes wastes — all systems are interdependent.
Porifera
Key Feature: Pore-bearing, no true tissues · Examples: Sponges
Cnidaria
Key Feature: Stinging cells (cnidocytes) · Examples: Jellyfish, coral, Hydra
Platyhelminthes
Key Feature: Flatworms, no body cavity · Examples: Tapeworm, Planaria
Nematoda
Key Feature: Roundworms, pseudocoelom · Examples: Ascaris, Hookworm
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Awards and Honours — General Studies · 12 cards
Bharat Ratna
is India's highest civilian award, instituted in 1954. It recognises exceptional service in any field, excluding sports (though this convention was amended in 2011 to include sports). No formal recommendation required—the Prime Minister recommends to the President. No post-nominal letters are conferred.
Padma Awards
form a three-tier system: Padma Vibhushan (exceptional/distinguished service), Padma Bhushan (distinguished service of high order), and Padma Shri (distinguished service). Announced on Republic Day eve; conferred by President at Rashtrapati Bhavan.
Gallantry awards hierarchy
(wartime): Param Vir Chakra > Maha Vir Chakra > Vir Chakra. Peacetime bravery: Ashoka Chakra > Kirti Chakra > Shaurya Chakra. Wartime awards instituted on 26 January 1950; peacetime awards instituted on 4 January 1952 (as Ashoka Chakra Class I, II, III; renamed Ashoka, Kirti, Shaurya Chakra in 1967);
Nobel Prize
is awarded in six fields—Physics, Chemistry, Physiology/Medicine, Literature, Peace, and Economic Sciences (added 1969). Awarded in Stockholm (Sweden), except Peace Prize in Oslo (Norway). Announced in October; conferred on 10 December (Alfred Nobel's death anniversary).
Ramon Magsaysay Award
is often called "Asia's Nobel Prize." Given for public service, community leadership, journalism, literature, and emergent leadership. Based in Manila, Philippines; named after a former Philippine President.
Posthumous awards
Bharat Ratna and Padma awards can be given posthumously. Gallantry awards are frequently posthumous. Nobel Prize is not awarded posthumously (since 1974 rule), with rare exceptions if death occurs after announcement.
Nomination and selection
Padma awards have an open public nomination process (online portal). A Padma Awards Committee headed by the Cabinet Secretary recommends names. Bharat Ratna has no formal committee—PM recommends, President confers.
Padma Vibhushan
Instituted: 1954 · Conferred By: President of India · Key Detail: Second-highest civilian
Padma Bhushan
Instituted: 1954 · Conferred By: President of India · Key Detail: Third-highest civilian
Padma Shri
Instituted: 1954 · Conferred By: President of India · Key Detail: Fourth-highest civilian
Param Vir Chakra
Instituted: 1950 · Conferred By: President of India · Key Detail: Highest wartime gallantry
Ashoka Chakra
Instituted: 1952 · Conferred By: President of India · Key Detail: Highest peacetime gallantry
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Agriculture and Rural Development — General Studies · 12 cards
Green Revolution (1966–67 onwards)
Introduction of High Yielding Variety (HYV) seeds, chemical fertilizers, irrigation expansion and mechanization—primarily in wheat (Punjab, Haryana) and later rice. Led by M.S. Swaminathan; Norman Borlaug called the "Father of Green Revolution" globally.
Minimum Support Price (MSP)
Government-announced floor price for 22+ crops to protect farmers from price crashes. Recommended by Commission for Agricultural Costs and Prices (CACP); declared by Cabinet Committee on Economic Affairs (CCEA). Not legally enforceable—procurement depends on government agencies like FCI.
Public Distribution System (PDS)
Joint Centre-State mechanism distributing subsidized foodgrains through Fair Price Shops. Reformed as Targeted PDS (1997) and later National Food Security Act (2013). Tamil Nadu operates a universal PDS covering all ration-card holders.
MNREGA (2005)
Mahatma Gandhi National Rural Employment Guarantee Act guarantees 100 days of unskilled manual work per rural household per year. Demand-driven, rights-based scheme with unemployment allowance if work not provided within 15 days.
Institutional Credit
Shift from moneylenders to formal sources—NABARD (apex body), Regional Rural Banks, Kisan Credit Card (1998), Interest Subvention Scheme (loans at 4% effective rate for prompt repayers).
Land Reforms
Abolition of zamindari, tenancy reforms, land ceiling acts—aimed at redistributive justice. Implementation varied; Tamil Nadu abolished intermediaries early (1948 Act).
Cooperative Movement
Tamil Nadu's milk cooperatives (Aavin), sugar cooperatives and Primary Agricultural Credit Societies (PACS) are models of successful rural organization.
Green Revolution start
1966–67; focused on wheat first, then rice
MSP crops (Kharif 2024)
14 Kharif + 6 Rabi + 2 commercial = 22+ crops
MSP formula (post-2018)
At least 1.5 times the A2+FL cost (paid-out cost + family labour)
NFSA coverage
75% rural + 50% urban population; 5 kg/person/month at ₹1–3/kg
MNREGA wage (2024–25)
Varies by state; TN ₹319/day
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Indian National Movement — General Studies · 12 cards
Revolt of 1857
was the first large-scale armed resistance against British rule, triggered by the greased cartridge issue but rooted in political, economic, and social grievances. It failed due to lack of coordination, limited geographic spread, and absence of unified leadership.
Formation of Indian National Congress (1885)
by A.O. Hume marked the beginning of organised nationalism. Early Congress leaders (Dadabhai Naoroji, Gokhale, Pherozeshah Mehta) used petitions, prayers, and constitutional methods—hence called "Moderates."
Extremist Phase (1905–1919)
saw leaders like Tilak, Lajpat Rai, and Bipin Chandra Pal advocate Swadeshi, boycott, and national education. Tilak's slogan: "Swaraj is my birthright, and I shall have it."
Revolutionary Nationalism
ran parallel to mainstream movements. Groups like Anushilan Samiti, Ghadar Party, and individuals like Bhagat Singh, Chandrashekhar Azad, and Subhas Chandra Bose's INA pursued armed struggle.
Gandhian Era (1919–1947)
introduced mass participation through Satyagraha (non-violent resistance). Key movements: Non-Cooperation (1920–22), Civil Disobedience (1930–34), and Quit India (1942).
Communal Politics and Partition
emerged from separate electorates (Morley-Minto 1909), Muslim League's two-nation theory (1940 Lahore Resolution), and eventual partition in 1947 with massive communal violence.
Constitutional Reforms
by British—Morley-Minto (1909), Montagu-Chelmsford (1919), Government of India Act (1935)—were responses to nationalist pressure but fell short of Indian demands.
1857
Revolt of 1857 (First War of Independence)
1885
Indian National Congress founded at Bombay
1905
Partition of Bengal; Swadeshi Movement begins
1906
Muslim League founded at Dhaka
1909
Morley-Minto Reforms (separate electorates)
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Communalism and Partition — General Studies · 12 cards
Two-Nation Theory
The political ideology that Hindus and Muslims constitute two separate nations with distinct religious, cultural, and social identities, and therefore cannot coexist in a single state. This became the ideological foundation for Pakistan's creation.
Communalism
The belief that religious identity determines political and economic interests, leading to the perception that one community's gain is another's loss. British policies like separate electorates deepened this divide.
Separate Electorates
Introduced by Morley-Minto Reforms (1909), this system allowed Muslims to vote only for Muslim candidates, institutionalizing religious division in politics.
Direct Action Day
(August 16, 1946): Called by the Muslim League to press for Pakistan, it triggered the "Great Calcutta Killings" with approximately 4,000 deaths, making Partition virtually inevitable.
Radcliffe Line
The boundary demarcating India and Pakistan, drawn by Sir Cyril Radcliffe (who had never visited India before) in just five weeks, announced on August 17, 1947.
Instrument of Accession
The legal document through which rulers of princely states acceded to either India or Pakistan, signing over defence, external affairs, and communications.
Standstill Agreement
A temporary arrangement allowing princely states to maintain existing administrative relations until final accession decisions were made.
Lahore Resolution
March 23, 1940 — Muslim League formally demanded separate Muslim states
Cabinet Mission Plan
1946 — Proposed three-tier federation; initially accepted by Congress and League, then collapsed
Mountbatten Plan
June 3, 1947 — Announced Partition and advanced independence date
Indian Independence Act
July 18, 1947 — British Parliament Act creating two dominions
Partition displacement
10-20 million refugees; 200,000–2 million deaths in communal violence
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Population and Urbanization — General Studies · 12 cards
Census of India
Conducted every 10 years since 1872; Census 2011 was the 15th census; first complete census was 1881; Registrar General and Census Commissioner of India conducts it under the Ministry of Home Affairs.
Population Density
Number of persons per square kilometre; calculated as Total Population ÷ Total Area; reflects pressure on land and resource distribution.
Sex Ratio
Number of females per 1000 males; India's overall sex ratio (2011) is 943; child sex ratio (0-6 years) is a critical indicator of gender discrimination.
Decadal Growth Rate
Percentage increase in population over a 10-year period; India's rate declined from 21.5% (1991-2001) to 17.7% (2001-2011), indicating demographic transition.
Urbanization
Process of population shift from rural to urban areas; measured as percentage of total population living in urban areas; driven by push factors (rural poverty) and pull factors (urban employment).
Migration
Movement of people from one place to another; classified as internal (within country) or international; and as rural-rural, rural-urban, urban-rural, or urban-urban streams.
Demographic Dividend
Economic benefit from a large working-age population relative to dependents; India's window estimated at 2005-2055.
Total Population
121.09 crore (1.21 billion)
Males
62.32 crore
Females
58.77 crore
Decadal Growth (2001-11)
17.7%
Child Sex Ratio (0-6)
919
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Marathas — General Studies · 12 cards
Shivaji's guerrilla warfare (Ganimi Kava)
Shivaji pioneered hit-and-run tactics suited to the Deccan terrain, avoiding pitched battles against larger Mughal forces and instead targeting supply lines and isolated outposts.
Swarajya concept
Shivaji established "Hindavi Swarajya" (self-rule of the people), which was not merely Hindu rule but an independent regional state challenging Mughal-Deccani Sultanate dominance.
Ashtapradhan (Council of Eight Ministers)
Shivaji's administrative system divided responsibilities among eight ministers, though it was not a cabinet system—each minister reported directly to the king.
Chauth and Sardeshmukhi
These two taxes (25% and 10% respectively) levied on territories not directly under Maratha rule became the financial backbone of expansion but also created resentment.
Peshwa dominance
After 1713, the Peshwas (originally just Prime Ministers) became hereditary rulers while Chhatrapatis became figureheads, shifting power from Satara to Pune.
Maratha Confederacy
By mid-18th century, the empire became a loose confederation of five major chiefs—Peshwa (Pune), Gaekwad (Baroda), Holkar (Indore), Scindia (Gwalior), and Bhonsle (Nagpur).
Third Battle of Panipat (1761)
The catastrophic defeat against Ahmad Shah Abdali ended Maratha dreams of all-India dominance and exposed fatal weaknesses in confederate unity.
Shivaji's birth
1630, Shivneri Fort (Junnar, Maharashtra)
Coronation
1674, Raigad Fort; assumed title "Chhatrapati"
Shivaji's death
1680, Raigad
First Peshwa of the Bhat family
Balaji Vishwanath (1713–1720)
Greatest Peshwa
Baji Rao I (1720–1740); never lost a battle
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Legislature — General Studies · 12 cards
Bicameral vs Unicameral
Parliament and six states (UP, Bihar, Maharashtra, Karnataka, Andhra Pradesh, Telangana) have two Houses; remaining states have only one House (Legislative Assembly).
Parliament = President + Lok Sabha + Rajya Sabha
The President is an integral part of Parliament, not separate from it (Article 79).
Lok Sabha represents people directly
; Rajya Sabha represents States and Union Territories. This reflects the federal principle.
Rajya Sabha is a continuing chamber
it never dissolves fully; one-third members retire every two years. Lok Sabha has a 5-year term but can be dissolved earlier.
Money Bills can only originate in Lok Sabha
; Rajya Sabha can only recommend amendments within 14 days, which Lok Sabha may accept or reject.
Joint Sitting (Article 108)
resolves deadlocks on ordinary bills — presided by Lok Sabha Speaker. Not applicable for Money Bills or Constitutional Amendment Bills.
State Legislature mirrors Parliament
but with Governor replacing President; Legislative Assembly (Vidhan Sabha) parallels Lok Sabha, Legislative Council (Vidhan Parishad) parallels Rajya Sabha.
Quorum
is one-tenth of total membership for both Houses of Parliament and State Legislatures.
Maximum Strength
Lok Sabha: 550 (530 States + 20 UTs; the 2 nominated Anglo-Indian seats ended*) · Rajya Sabha: 250 (238 elected + 12 nominated)
Present Strength
Lok Sabha: 543 · Rajya Sabha: 245
Term
Lok Sabha: 5 years (subject to dissolution) · Rajya Sabha: 6 years (1/3 retire every 2 years)
Minimum Age
Lok Sabha: 25 years · Rajya Sabha: 30 years
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Health and Nutrition — General Studies · 12 cards
Communicable diseases
spread from person to person through direct contact, air, water, food, or vectors (mosquitoes, flies). Examples: Tuberculosis, Malaria, COVID-19, Cholera.
Non-communicable diseases (NCDs)
are not transmitted between people; they arise from genetic, lifestyle, or environmental factors. Examples: Diabetes, Hypertension, Cancer, Heart disease. NCDs cause over 60% of deaths in India.
Pathogens
are disease-causing organisms — bacteria (TB, Typhoid), viruses (Dengue, Hepatitis), protozoa (Malaria, Amoebic dysentery), fungi (Ringworm), and helminths (Ascariasis).
Vectors
are organisms that transmit pathogens: Anopheles mosquito (Malaria), Aedes mosquito (Dengue, Chikungunya), housefly (Cholera, Typhoid).
Immunity
is the body's defence mechanism — Innate (present from birth) and Acquired (developed after exposure or vaccination).
Balanced diet
provides carbohydrates, proteins, fats, vitamins, minerals, water, and roughage in correct proportions for age, sex, and activity level.
Malnutrition
includes undernutrition (deficiency), overnutrition (obesity), and micronutrient deficiencies (hidden hunger).
Public health
focuses on disease prevention, health promotion, and extending life through organized community efforts — vaccination, sanitation, health education.
Tuberculosis
Causative Agent: Mycobacterium tuberculosis · Transmission: Airborne droplets · Prevention: BCG vaccine, DOTS
Malaria
Causative Agent: Plasmodium (P. vivax, P. falciparum) · Transmission: Anopheles mosquito · Prevention: Bed nets, anti-malarials
Dengue
Causative Agent: Dengue virus · Transmission: Aedes aegypti mosquito · Prevention: Eliminate stagnant water
Typhoid
Causative Agent: Salmonella typhi · Transmission: Contaminated water/food · Prevention: Safe water, hygiene
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Books and Authors — General Studies · 12 cards
Autobiographies vs Biographies
An autobiography is written by the person about themselves (e.g., "Wings of Fire" by A.P.J. Abdul Kalam). A biography is written by someone else about the subject (e.g., "Patel: A Life" by Rajmohan Gandhi).
Award-winning books
Track annual Booker Prize, Sahitya Akademi, Jnanpith Award, and Pulitzer Prize winners.
Books by political figures
Know the books written by Presidents, Prime Ministers, Chief Ministers, and freedom fighters.
Tamil literary works have special importance
For TNPSC, know major Tamil authors — Kalki, Jayakanthan, Sundara Ramasamy, Perumal Murugan, and classic works.
Recent releases (last 2-3 years) matter most for current affairs
Budget speeches, policy documents released as books, and memoirs by retiring officials are common sources.
Sports personalities' autobiographies are trending
Books by cricketers, Olympians, and sports administrators appear frequently.
Economic and administrative books by bureaucrats
Former RBI Governors, Finance Secretaries, and diplomats often write memoirs that become exam questions.
Discovery of India
Jawaharlal Nehru
Glimpses of World History
Jawaharlal Nehru
My Experiments with Truth
Mahatma Gandhi
Hind Swaraj
Mahatma Gandhi
India Wins Freedom
Maulana Abul Kalam Azad
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Industry and Service Sector — General Studies · 12 cards
Three-sector model
Primary (agriculture, mining), Secondary (manufacturing, construction), Tertiary (services). India leapfrogged from primary to tertiary, unlike Western economies that transitioned through manufacturing.
Industrial Policy Resolution 1956
Classified industries into three schedules — Schedule A (state monopoly like arms, atomic energy), Schedule B (state progressively owned), Schedule C (private sector). This shaped India's mixed economy character.
Liberalization 1991
Abolished industrial licensing for most sectors, cut industries reserved for the public sector from 17 to 8 (compulsory licensing kept for only 18), allowed FDI and ended MRTP restrictions. Marked shift from License Raj to market economy.
MSME classification (revised 2020)
Based on investment AND turnover criteria — Micro (investment up to ₹1 crore, turnover up to ₹5 crore), Small (up to ₹10 crore, ₹50 crore), Medium (up to ₹50 crore, ₹250 crore). Manufacturing and services have same limits now.
Services as growth engine
IT-BPM, telecom, banking, tourism, retail — together contribute over 54% of GVA. India is world's largest exporter of IT services.
Production Linked Incentive (PLI) scheme
Incentivizes domestic manufacturing in 14 sectors including electronics, automobiles, pharmaceuticals, textiles. Aims to boost exports and reduce import dependence.
Tamil Nadu as industrial hub
Second largest state economy, leading in automobiles (Chennai = Detroit of India), textiles (Coimbatore, Tirupur), IT (Chennai, Coimbatore), leather and heavy engineering.
Service sector GDP share
~54% (2023-24)
Manufacturing GDP share
~17%
MSME contribution to GDP
~30%
MSME share in exports
~45%
IT-BPM revenue (2023-24)
~$254 billion
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Major Leaders — General Studies · 11 cards
Mahatma Gandhi
introduced Satyagraha (truth-force) and Ahimsa (non-violence) as political weapons, transforming the freedom struggle into a mass movement involving peasants, workers, and women.
Jawaharlal Nehru
represented the socialist and secular vision of independent India, serving as the bridge between Gandhian ideals and modern nation-building.
Sardar Vallabhbhai Patel
was the organizational genius who united 562 princely states into the Indian Union, earning the title "Iron Man of India."
B.R. Ambedkar
championed the cause of Dalits and depressed classes, becoming the principal architect of the Indian Constitution.
Subhas Chandra Bose
advocated armed struggle against the British, formed the Indian National Army (INA), and gave the slogan "Give me blood, I will give you freedom."
Bal Gangadhar Tilak
was the father of Indian extremism who declared "Swaraj is my birthright and I shall have it," transforming nationalism into a popular movement.
Moderate-Extremist divide
(1905-1907) marked a crucial ideological split — Moderates favoured petitions and constitutional methods while Extremists demanded direct action and Swaraj.
Sardar Patel
Birth-Death: 1875-1950 · Famous Slogan/Quote: "Mandir wahi banayenge" — NOT his · Key Contribution: Bardoli Satyagraha, Integration of States
Lala Lajpat Rai
Birth-Death: 1865-1928 · Famous Slogan/Quote: "Lion of Punjab" · Key Contribution: Swadeshi movement, died after lathi charge
Bipin Chandra Pal
Birth-Death: 1858-1932 · Famous Slogan/Quote: Part of Lal-Bal-Pal · Key Contribution: Extremist ideology, Bengal partition protest
Gopal Krishna Gokhale
Birth-Death: 1866-1915 · Famous Slogan/Quote: Gandhi's political guru · Key Contribution: Servants of India Society, Moderate leader
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Transport and Communication — General Studies · 12 cards
India's transport sector contributes about 4.5% to GDP
and employs millions directly and indirectly; an efficient network reduces logistics costs and boosts competitiveness.
Roads carry over 60% of freight and 85% of passenger traffic
, making them the dominant mode despite railways being more fuel-efficient for bulk goods.
Indian Railways operates the fourth-largest railway network globally
with 18 zones; it remains the primary mode for long-distance bulk freight (coal, iron ore, food grains).
Inland waterways are the cheapest mode of transport
but remain underdeveloped; National Waterway-1 (Ganga) is the longest at 1,620 km.
Major ports are under Union jurisdiction
(12 currently) while minor ports are under State governments; Tamil Nadu has Chennai, Ennore (Kamarajar), and V.O. Chidambaranar (Tuticorin) as major ports.
Civil aviation is the fastest-growing transport segment
; UDAN (Ude Desh ka Aam Nagrik) aims to connect tier-2/tier-3 cities through regional connectivity.
Telecom revolution post-1991 liberalisation
transformed India into the world's second-largest telecom market by subscribers; Digital India and BharatNet target rural broadband penetration.
Transport policies increasingly emphasise multimodal logistics
integrating road, rail, water, and air through dedicated freight corridors and logistics parks.
Total road length
~63.86 lakh km (one of the world's largest networks)
National Highways
~1.46 lakh km; carry 40% of road traffic though only ~2% of length
Expressways
~4,000+ km operational; Mumbai-Pune Expressway was India's first
Railway route length
~68,000 km; ~45,000 km electrified (target: 100% electrification)
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Bhakti and Sufi Movements — General Studies · 12 cards
Bhakti (Devotion)
Direct, personal love for God without intermediaries—rejected elaborate rituals, priestly monopoly, and caste-based worship. Salvation through surrender and devotion, not birth or learning.
Saguna vs Nirguna Bhakti
Saguna saints (Ramanuja, Chaitanya, Mirabai) worshipped God with form and attributes; Nirguna saints (Kabir, Guru Nanak) believed in formless, attributeless Supreme Being.
Sufism
Islamic mysticism emphasizing love of God (Ishq), renunciation of worldly pleasures, and union with the Divine. Sufis organized into Silsilas (orders) with a chain of spiritual masters (Pir-Murid relationship).
Syncretic Character
Both movements borrowed freely from each other—Sufi poetry used Hindu imagery; Bhakti saints incorporated Islamic concepts. This created a composite culture transcending religious boundaries.
Vernacular Revolution
Saints composed in regional languages (Tamil, Hindi, Marathi, Punjabi, Bengali) instead of Sanskrit or Arabic—democratized spiritual knowledge and created lasting literary traditions.
Social Egalitarianism
Both movements attracted lower castes and women, challenging Brahmanical orthodoxy and Islamic clergy (Ulema). Many saints came from artisan castes—weavers, cobblers, barbers.
Khanqah System
Sufi hospices served as centers of spiritual learning, charity, and community service—open to all regardless of religion or caste.
Origin Period
Bhakti Movement: c. 6th century CE (South India) · Sufi Movement: 10th-11th century CE (Persia/Central Asia, reached India)
Core Principle
Bhakti Movement: Devotion (Bhakti) to personal God · Sufi Movement: Divine Love (Ishq-e-Haqiqi)
Sacred Language
Bhakti Movement: Regional vernaculars · Sufi Movement: Persian, later regional languages
Organization
Bhakti Movement: Informal; guru-shishya tradition · Sufi Movement: Formal Silsilas with hierarchy
Key Practice
Bhakti Movement: Kirtan, bhajan, nama-japa · Sufi Movement: Sama (music), zikr, meditation
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Indian Polity — General Studies · 12 cards
Constitutional Supremacy
India follows constitutional supremacy, not parliamentary supremacy. Any law violating the Constitution can be struck down by courts through judicial review.
Federal with Unitary Bias
India is a "Union of States" (Article 1)—federal in structure but with strong centralizing features like single citizenship, integrated judiciary, and emergency provisions.
Separation of Powers
Legislature makes laws, Executive implements them, Judiciary interprets them. No organ can encroach on another's domain (basic structure doctrine).
Fundamental Rights vs DPSPs
Fundamental Rights are justiciable (enforceable in court); Directive Principles are non-justiciable but fundamental in governance. Minerva Mills case established they are complementary.
Parliamentary System
Executive is drawn from and accountable to the legislature. Collective responsibility of Council of Ministers to Lok Sabha/State Assembly.
Basic Structure Doctrine
Established in Kesavananda Bharati case (1973)—Parliament cannot amend the Constitution to destroy its basic features (federalism, secularism, judicial review, etc.).
Cooperative Federalism
Post-GST and NITI Aayog, emphasis shifted from centralized planning to cooperative decision-making between Centre and States.
Constitutional Morality
Beyond written text, governance must reflect the spirit and values underlying the Constitution.
Constitution Adoption
26 November 1949 (adoption); 26 January 1950 (came into force)
Preamble Keywords
Sovereign, Socialist, Secular (added by 42nd Amendment, 1976), Democratic, Republic
Total Articles
Originally 395; currently 470+ (after amendments)
Total Schedules
12 Schedules
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Judiciary — General Studies · 12 cards
Integrated Judicial System
Single hierarchy of courts applying both Central and State laws — ensures legal unity across India.
Independence of Judiciary
Secured through security of tenure, fixed service conditions, separation of judiciary from executive (Article 50), and ban on discussion of judge conduct in Parliament (except during impeachment).
Supreme Court as Court of Record
(Article 129): Its judgments are preserved as precedents and it can punish for contempt of itself.
Judicial Review
Power of courts to examine the constitutionality of legislative and executive actions — declared a basic structure in Kesavananda Bharati case (1973).
Collegium System
Judges of SC and HCs are appointed through a collegium of senior judges — not mentioned in Constitution, evolved through three Judges Cases (1981, 1993, 1998).
Public Interest Litigation (PIL)
Relaxation of locus standi allowing any public-spirited person to approach courts on behalf of those who cannot — originated in 1980s under Justice P.N. Bhagwati.
Writ Jurisdiction
SC (Article 32) and HCs (Article 226) can issue five writs — Habeas Corpus, Mandamus, Prohibition, Certiorari, Quo Warranto.
High Court's Wider Writ Power
Article 226 is broader than Article 32 — HC can issue writs for fundamental rights AND any other purpose; SC only for fundamental rights.
Constitutional Articles
Supreme Court: 124–147 · High Court: 214–231
Established
Supreme Court: 28 January 1950 · High Court: Various dates (Calcutta HC oldest — 1862)
Composition
Supreme Court: 1 CJI + 33 judges (current sanctioned strength: 34) · High Court: Varies by state
Appointment
Supreme Court: By President on collegium recommendation · High Court: By President; Governor consulted for HC
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Environment and Ecology — General Studies · 8 cards
Ecosystem
A functional unit comprising living organisms (biotic) and non-living environment (abiotic) interacting through energy flow and nutrient cycling. Can be as small as a pond or as large as a biome.
Food Chain vs Food Web
Food chain is a single linear pathway of energy transfer (grass → deer → tiger). Food web is an interconnected network of multiple food chains in an ecosystem — more realistic and stable.
Ecological Pyramid
Graphical representation of trophic levels. Pyramid of energy is always upright (only 10% energy transfers to next level). Pyramid of biomass can be inverted in aquatic ecosystems.
Biodiversity Hotspots
Regions with at least 1,500 endemic plant species and having lost 70% of original habitat. India has 4 hotspots — Western Ghats, Himalayas, Indo-Burma, and Sundaland (Nicobar Islands).
Endemic vs Exotic Species
Endemic species are native and found only in a specific region (Lion-tailed macaque in Western Ghats). Exotic/alien species are introduced from outside (Lantana, water hyacinth) and can become invasive.
Greenhouse Effect
Natural phenomenon where atmospheric gases (CO2, methane, water vapour) trap heat and warm Earth. Enhanced greenhouse effect due to human activities causes global warming.
Biogeochemical Cycles
Circulation of essential elements (carbon, nitrogen, water) between biotic and abiotic components. Human interference disrupts these cycles — burning fossil fuels adds carbon, fertilizers add nitrogen.
Ecological Succession
Gradual and predictable change in species composition over time. Primary succession starts on bare rock; secondary succession occurs after disturbance in existing ecosystem.
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Indian Economy and Development Administration in Tamil Nadu — General Studies · 12 cards
Mixed Economy Character
India follows a mixed economy model where both public and private sectors coexist. Post-1991 LPG reforms shifted emphasis toward market mechanisms while retaining state intervention in strategic sectors.
Three-Sector Classification
Primary sector (agriculture, mining), Secondary sector (manufacturing, construction), and Tertiary sector (services). India's GDP composition: Services ~54%, Industry ~26%, Agriculture ~18% — but agriculture still employs ~46% workforce.
Planning to NITI Aayog Transition
Planning Commission (1950-2014) was replaced by NITI Aayog (2015) — shifting from top-down planning to cooperative federalism with states as equal partners.
Fiscal vs Monetary Policy
Fiscal policy (government's taxation and spending) is handled by Finance Ministry; Monetary policy (money supply, interest rates) is RBI's domain. Both work in coordination for economic stability.
Inclusive Growth Paradigm
Current development focus is on growth with equity — ensuring benefits reach marginalized sections through targeted schemes (DBT, social security pensions, food security).
Tamil Nadu Development Model
TN consistently ranks among top states in HDI, industrialization, and social indicators. Known for pioneering mid-day meal scheme, universal PDS, and comprehensive social security net.
E-Governance as Development Tool
Digital platforms (e-Sevai, UMANG, Common Service Centres) have transformed service delivery, reducing corruption and improving access.
GDP Growth
India's GDP growth target: 6-7% annually; FY 2023-24 growth: 8.2% (provisional, May 2024; revised to 9.2% in Feb 2025)
Fiscal Deficit
Target under FRBM Act: 3% of GDP; Current: ~5.8% (FY24 RE)
GST Introduction
1 July 2017; Four slabs: 5%, 12%, 18%, 28%
NITI Aayog
Chairperson: Prime Minister; CEO: Secretary-rank officer; Replaced Planning Commission
RBI Functions
Monetary authority, banker to government, currency issuer, regulator of banks
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Welfare and Social Sector — General Studies · 12 cards
Directive Principles as Foundation
Articles 38, 39, 41, 42, 45, 46, and 47 mandate the State to secure social welfare—these form the constitutional basis for all welfare legislation.
Rights-Based Approach
India shifted from "beneficiary" to "rights holder" model through landmark Acts—Right to Education (2009), Food Security Act (2013), and MGNREGA (2005) guarantee entitlements, not charity.
Universal vs Targeted Programmes
Universal programmes (MDM, immunisation) cover all eligible persons; targeted programmes (BPL schemes, SC/ST scholarships) use identification criteria—exams test this distinction.
Centrally Sponsored vs Central Sector
CSS involves cost-sharing with states (60:40 or 75:25); Central Sector schemes are 100% funded by Centre—know which scheme falls where.
Social Security Architecture
Organised sector has EPF, ESI, gratuity; unorganised sector covered under Unorganised Workers Social Security Act 2008 and PM-SYM, PM-KISAN.
Human Development Indicators
HDI (UNDP), Multidimensional Poverty Index (MPI), Gender Development Index—India's rankings and component metrics are important.
DBT Revolution
Direct Benefit Transfer through JAM trinity (Jan Dhan-Aadhaar-Mobile) reduced leakages—over 300 schemes now use DBT.
India's HDI Rank (2023-24)
134 out of 193 countries
Literacy Rate (Census 2011)
74.04% (Male: 82.14%, Female: 65.46%)
Infant Mortality Rate (SRS 2020)
28 per 1000 live births
Maternal Mortality Ratio (SRS 2020)
97 per 1 lakh live births
NFSA Coverage
75% rural, 50% urban population
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Natural Calamities and Disaster Management — General Studies · 12 cards
Disaster vs. Hazard
A hazard becomes a disaster only when it causes significant loss of life, property, or disruption. Preparedness reduces hazard-to-disaster conversion.
India's vulnerability profile
58.6% landmass prone to earthquakes, 12% to floods, 68% of cultivable area to drought, and about 5,700 km of the 7,516 km coastline to cyclones and tsunamis.
Disaster Management Cycle
Four phases—Mitigation → Preparedness → Response → Recovery.
Three-tier institutional structure
NDMA (national, chaired by PM) → SDMA (state, chaired by CM) → DDMA (district, chaired by Collector/DM).
NDRF (National Disaster Response Force)
Specialized force for disaster response, established under DM Act 2005, with 16 battalions stationed across India. Tamil Nadu has an NDRF battalion (4th Bn, Arakkonam, Ranipet district).
Seismic zoning
India divided into Zones II, III, IV, V (V being most severe). Tamil Nadu falls in Zones II and III.
Cyclone classification by IMD
Depression → Deep Depression → Cyclonic Storm → Severe → Very Severe → Extremely Severe → Super Cyclonic Storm.
CDRI (Coalition for Disaster Resilient Infrastructure)
India-led global coalition launched in 2019 to promote resilient infrastructure systems.
Floods
Primary Affected Regions: Assam, Bihar, UP, West Bengal, coastal TN · Key Causes: Monsoon excess, dam release, poor drainage
Droughts
Primary Affected Regions: Rajasthan, Maharashtra, Karnataka, Andhra, TN (rain-shadow) · Key Causes: Monsoon failure, El Niño, groundwater depletion
Earthquakes
Primary Affected Regions: Zone V: Kashmir, NE; Zone IV: Delhi, HP, Uttarakhand · Key Causes: Tectonic plate movements (Indian-Eurasian collision)
Cyclones
Primary Affected Regions: Odisha, Andhra, Tamil Nadu, West Bengal · Key Causes: Bay of Bengal warm waters, Coriolis effect
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Unity in Diversity — General Studies · 12 cards
Composite Culture
Indian culture is not monolithic but a synthesis of Aryan, Dravidian, Mongoloid, and other influences blended over millennia through trade, migration, and intermarriage.
Linguistic Diversity with Unity
The Eighth Schedule recognizes 22 languages from four major language families (Indo-Aryan, Dravidian, Austro-Asiatic, Tibeto-Burman), yet Hindi in Devanagari script serves as the official language and English as associate official language.
Religious Pluralism
India is the birthplace of Hinduism, Buddhism, Jainism, and Sikhism, and home to significant Muslim, Christian, Zoroastrian (Parsi), and Jewish populations — all coexisting for centuries.
Constitutional Secularism
The 42nd Amendment (1976) added "secular" to the Preamble. Indian secularism means equal respect for all religions (Sarva Dharma Sambhava), not separation of state from religion as in Western models.
Geographical Unity
Natural boundaries — Himalayas in the north, oceans on three sides — created a distinct subcontinent identity despite internal diversity.
Cultural Synthesis
Festivals like Diwali, Eid, Christmas, and Pongal are celebrated across communities. Art forms, cuisine, and architecture show cross-cultural influences (Indo-Islamic architecture, Sufi-Bhakti traditions).
National Symbols as Unifiers
The national flag, anthem, emblem, and festivals like Republic Day create shared identity transcending regional and religious differences.
Racial Groups
Proto-Australoid, Mongoloid, Mediterranean, Western Brachycephals, Nordics, Negritos
Language Families
Indo-Aryan (78.05%), Dravidian (19.64%), Austro-Asiatic, Tibeto-Burman — Census 2011
Scheduled Languages
22 languages in Eighth Schedule (originally 14 in 1950; Bodo, Dogri, Maithili, Santhali added in 2003)
Major Religions
Hinduism (79.8%), Islam (14.2%), Christianity (2.3%), Sikhism (1.7%), Buddhism (0.7%), Jainism (0.4%) — Census 2011
Constitutional Articles
Article 14 (Equality), Article 15 (No discrimination), Article 25-28 (Religious freedom), Article 29-30 (Cultural and educational rights)
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Local Self Government — General Studies · 12 cards
Constitutional Status
73rd Amendment added Part IX (Articles 243 to 243-O) for Panchayats; 74th Amendment added Part IX-A (Articles 243-P to 243-ZG) for Municipalities. Both came into force on 24 April 1993 and 1 June 1993 respectively.
Three-Tier Structure of Panchayats
Gram Panchayat (village level), Panchayat Samiti/Block Panchayat (intermediate level), and Zilla Parishad (district level). States with population below 20 lakh may skip the intermediate tier.
Gram Sabha
The foundation of Panchayati Raj — all registered voters of a village constitute the Gram Sabha. It is the only body directly involving citizens, not elected representatives.
Reservation Provisions
One-third seats reserved for women (raised to 50% in many states including Tamil Nadu). SC/ST reservation proportional to population. One-third of chairperson positions reserved for women.
Five-Year Term
Fixed tenure of 5 years for all local bodies. Elections must be held before expiry; if dissolved early, elections within 6 months, and the new body serves only the remaining term.
State Election Commission (SEC)
Article 243-K mandates an independent SEC for superintendence, direction, and control of local body elections. SEC is appointed by the Governor.
State Finance Commission (SFC)
Article 243-I requires the Governor to constitute an SFC every 5 years to recommend distribution of finances between state and local bodies.
District Planning Committee (DPC)
Article 243-ZD mandates a DPC in every district to consolidate plans prepared by Panchayats and Municipalities into a draft development plan.
73rd Amendment Act
1992; effective 24 April 1993
74th Amendment Act
1992; effective 1 June 1993
Part IX
Panchayats (Articles 243 to 243-O)
Part IX-A
Municipalities (Articles 243-P to 243-ZG)
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Science & Technology Advances — General Studies · 12 cards
ISRO's Launch Vehicles
PSLV (workhorse for satellites), GSLV (heavier payloads, cryogenic engine), LVM3 (formerly GSLV Mk III, human spaceflight capable) — know their payload capacities and key missions.
Chandrayaan and Mars Missions
Chandrayaan-3 achieved India's first soft lunar landing (August 2023) near the Moon's south pole (about 69°S); Mangalyaan (2014) made India the first nation to succeed in Mars orbit on its maiden attempt.
Gaganyaan Programme
India's first human spaceflight mission — involves crew module, service module, and escape system; targets sending 3 astronauts to low Earth orbit.
DRDO's Missile Programme
Agni series (nuclear-capable ballistic), Prithvi (surface-to-surface), BrahMos (supersonic cruise, Indo-Russian), Akash (surface-to-air) — know the type and range category.
Digital India Ecosystem
UPI (instant payments), Aadhaar (biometric ID), DigiLocker, CoWIN (vaccine platform), UMANG app — emphasis on government digital transformation.
Biotechnology Applications
Genome India Project, DBT-supported vaccines (Covaxin by Bharat Biotech), GM crops (Bt Cotton approved in India), biosimilars and biofuel research.
Supercomputing Mission
National Supercomputing Mission aims to build 24 petaflop supercomputers; PARAM series developed by C-DAC.
5G and Emerging Tech
India's 5G rollout (2022), semiconductor mission, AI initiatives under IndiaAI Mission, quantum computing research at TIFR and IISc.
Space
Chandrayaan-3's lander: Vikram; rover: Pragyan; landing site: Shiv Shakti Point
Defence
BrahMos: World's fastest supersonic cruise missile (~Mach 2.8), range ~450 km (extended)
IT
UPI transactions crossed 10 billion monthly (2023); India leads global real-time payments
Biotech
Covaxin: India's first indigenous COVID-19 vaccine (inactivated virus platform)
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TN Development Administration — General Studies · 12 cards
Tamil Nadu's Economic Standing
Second-largest state economy in India by GSDP at current prices (3rd at constant prices); significant contribution from manufacturing (automobiles, textiles, leather), IT services, and agriculture.
Human Development Index (HDI)
TN ranks among the top 5 states in India; high literacy rate (above 80%), better health indicators, and lower infant mortality than the national average.
Welfare State Model
TN follows an extensive welfare approach — universal PDS, free education up to higher secondary, subsidised healthcare, and social security pensions.
Decentralised Governance
Strong Panchayati Raj system with Village Panchayats, Panchayat Unions, and District Panchayats; Urban local bodies include Corporations, Municipalities, and Town Panchayats.
TNeGA (Tamil Nadu e-Governance Agency)
Nodal agency for implementing all e-Governance projects; established in 2007; functions under the IT Department.
Single-Window Clearance
Industrial investment facilitated through Guidance Bureau (Tamil Nadu Guidance) — a one-stop portal for investors.
Fiscal Prudence
TN maintains a manageable fiscal deficit; own tax revenue forms a significant portion of total revenue (VAT/GST, stamps and registration, motor vehicle tax).
GSDP Rank
2nd or 3rd in India
Per Capita Income
Above ₹2.5 lakh (higher than national average)
Literacy Rate
~80% (2011 Census)
Sex Ratio
~996 females per 1000 males
Infant Mortality Rate
~15 per 1000 live births (better than India's ~28)
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Environmental Issues and Green Energy — General Studies · 12 cards
Pollution classification
Air, water, soil, noise, and radiation pollution—each has distinct sources, effects, and control measures under specific legislation.
Greenhouse effect and global warming
Solar radiation absorbed by Earth is re-emitted as infrared; greenhouse gases (CO₂, CH₄, N₂O, CFCs) trap this heat, raising global temperatures.
Carbon footprint
Total greenhouse gas emissions caused by an individual, event, organization, or product, expressed in CO₂ equivalent.
Renewable vs non-renewable energy
Renewable sources (solar, wind, hydro, biomass, geothermal) are naturally replenished; non-renewable (coal, oil, natural gas, nuclear fuel) are finite.
Sustainable development
Development meeting present needs without compromising future generations' ability to meet theirs—balances economic growth, social equity, and environmental protection.
Ozone layer depletion
CFCs and halons break down stratospheric ozone (O₃), increasing UV radiation reaching Earth's surface; addressed by Montreal Protocol (1987).
Biodiversity hotspots
Regions with high endemic species concentration facing significant habitat loss—India has 4 hotspots: Western Ghats, Himalayas, Indo-Burma, Sundaland.
Circular economy
Economic system aimed at eliminating waste through continual use of resources—reduce, reuse, recycle, recover.
India's RE target
500 GW non-fossil fuel capacity by 2030
Net Zero commitment
India aims for Net Zero by 2070 (COP26, Glasgow)
Paris Agreement
Hold warming well below 2°C above pre-industrial levels and pursue efforts to limit it to 1.5°C; India's NDC: 45% emission intensity reduction by 2030
Solar capacity (2024)
India has ~70+ GW installed solar capacity; Tamil Nadu among top 3 states
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Personalities and Symbols — General Studies · 12 cards
National Symbols represent sovereignty
Each symbol was officially adopted through constitutional or governmental decisions, with specific dates that are frequently tested.
Epithets and titles distinguish leaders
Many freedom fighters and reformers carry distinctive titles (e.g., Mahatma, Netaji, Lokmanya) that indicate their role or ideology.
Scientists built modern India
Post-independence scientific progress involved pioneers in atomic energy, space, agriculture, and medicine—their contributions are linked to specific institutions and achievements.
Sportspersons represent firsts
Questions often focus on the first Indian to achieve something—first Olympic medal, first world champion, first to reach a milestone.
Constitutional vs. legislative adoption
Some symbols are mentioned in the Constitution (Flag, Anthem — Article 51A), while others were adopted through government notifications (National Animal, Bird).
Chronological awareness matters
Knowing that the Constituent Assembly adopted certain symbols in 1950, while others came later (National Calendar in 1957), helps eliminate wrong options.
National Flag (Tiranga)
Description: Saffron, white, green with Ashoka Chakra (24 spokes) · Adopted: 22 July 1947
National Emblem
Description: Lion Capital of Ashoka at Sarnath; motto: Satyameva Jayate · Adopted: 26 January 1950
National Anthem
Description: Jana Gana Mana (Rabindranath Tagore) — first sung 27 Dec 1911, Calcutta session · Adopted: 24 January 1950
National Song
Description: Vande Mataram (Bankim Chandra Chatterjee, from Anandamath) · Adopted: 24 January 1950
National Calendar
Description: Saka Era; Chaitra as first month; 365 days · Adopted: 22 March 1957
National Animal
Description: Bengal Tiger (Panthera tigris tigris) · Adopted: 1973 (replaced Lion)
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Elections — General Studies · 12 cards
Election Commission of India (ECI)
is an independent constitutional body under Article 324, responsible for superintendence, direction, and control of all elections to Parliament, State Legislatures, and offices of President and Vice-President.
Composition of ECI
Originally single-member; since 1993, it has been multi-member with one Chief Election Commissioner (CEC) and two Election Commissioners (ECs). All three have equal voting power; decisions are taken by majority.
First-Past-The-Post (FPTP) System
India uses territorial representation where the candidate with the highest votes wins, regardless of whether they secure a majority. Simple, but can result in governments formed without majority popular vote.
Proportional Representation (PR)
Used only for President, Vice-President, and Rajya Sabha/State Legislative Council elections. Ensures representation proportional to votes received.
Anti-Defection Law (Tenth Schedule)
Added by 52nd Amendment, 1985, to curb political defections. Disqualifies members who voluntarily give up party membership or vote against party whip.
Merger Exception
Defection is permitted if at least two-thirds of a legislature party agrees to merge with another party—this is the only group exception left after the 91st Amendment, 2003 removed the "split" provision.
Model Code of Conduct (MCC)
A set of guidelines issued by ECI for political parties and candidates during elections. Not statutory, but enforced through administrative actions and moral authority.
NOTA (None of The Above)
Introduced in 2013 following the PUCL vs Union of India judgment, allowing voters to reject all candidates. However, NOTA votes do not affect election results—highest vote-getter still wins.
Article 324
Vests election superintendence in ECI
Article 325
One general electoral roll; no special rolls based on religion/race/caste
Article 326
Adult suffrage—every citizen 18+ years can vote (reduced from 21 by 61st Amendment, 1988)
CEC/EC Appointment
By President (earlier—on PM's advice; from 2023—selection committee of PM, LoP and a Union Cabinet Minister nominated by PM)
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Public Awareness and General Administration — General Studies · 12 cards
Citizen Charter
A voluntary commitment by a public agency stating the standards of service delivery, timelines, grievance redressal mechanisms, and the rights of citizens. It is not legally enforceable but creates moral accountability.
Right to Information (RTI) Act, 2005
A law that empowers citizens to seek information from public authorities, promoting transparency and reducing corruption. It shifted the paradigm from "official secrecy" to "official transparency."
Public Information Officer (PIO)
The designated official in every public authority who receives RTI applications, collects information from relevant sections, and furnishes replies within stipulated timelines.
e-Governance
Use of information technology to deliver government services efficiently, reduce corruption through automation, and ensure time-bound service delivery.
e-Sevai (Tamil Nadu)
The state's flagship common service centre initiative providing over 100 government services at a single point—certificates, utility payments, welfare scheme applications—through rural and urban kiosks.
Grievance Redressal Mechanism
Institutionalized systems like CPGRAMS (Central) and CM Cell (Tamil Nadu) where citizens can lodge complaints about administrative delays or misconduct.
Service Delivery Standards
Time limits prescribed for delivering specific services (birth certificate in 7 days, caste certificate in 15 days, etc.) under various state acts and citizen charters.
Accountability vs Transparency
Transparency means providing information; accountability means being answerable for actions. RTI ensures transparency; Lokpal/Lokayukta ensure accountability.
RTI Act enacted
15 June 2005 (fully in force 12 October 2005)
RTI application fee
₹10 (Central); ₹10 (Tamil Nadu)
Time limit for RTI reply
30 days (ordinary); 48 hours (life/liberty matters)
First Appeal deadline
Within 30 days of receiving reply (or non-receipt)
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Lokpal and Lok Ayukta — General Studies · 10 cards
Ombudsman concept
Originates from Sweden (1809); an independent authority that investigates citizen complaints against government officials. India adapted this as Lokpal (Union) and Lok Ayukta (States).
First Administrative Reforms Commission (1966)
Recommended creation of Lokpal and Lok Ayukta. Eight Lokpal Bills were introduced in Parliament between 1968-2011 before the 2013 Act was finally passed.
Lokpal jurisdiction
Covers Prime Minister (with conditions), Union Ministers, MPs, and Group A/B/C/D officers of the Central Government. PM is excluded for matters relating to international relations, external and internal security, public order, atomic energy, and space.
Lok Ayukta
State-level ombudsman; each state enacts its own law. Maharashtra (1971) was the first state to establish Lok Ayukta. Tamil Nadu established its Lok Ayukta under the Tamil Nadu Lokayukta Act, 2018.
RTI Act, 2005
Empowers citizens to seek information from public authorities, promoting transparency and reducing corruption. Information must be provided within 30 days (48 hours for life/liberty matters).
Central Vigilance Commission (CVC)
Statutory body (CVC Act, 2003) that supervises vigilance administration and advises on corruption cases involving central government employees. It is not an investigating agency — it works through CBI and departmental chief vigilance officers.
Whistleblower Protection Act, 2014
Protects persons who disclose information about corruption, wilful misuse of power, or criminal offences by public servants.
Lokpal
Established By: Lokpal Act, 2013 · Jurisdiction: Union-level public servants · Key Feature: Chairperson + 8 members
CVC
Established By: CVC Act, 2003 · Jurisdiction: Central govt employees · Key Feature: Advisory, not investigative
CIC
Established By: RTI Act, 2005 · Jurisdiction: Information appeals · Key Feature: Final appellate authority
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Temple Architecture — History, Culture, Heritage & Socio-Political Movements in Tamil Nadu · 12 cards
Dravidian Style Basics
Temples face east, built on a raised platform (jagati), featuring vimana over sanctum, mandapas (halls), prakaram (enclosures), and gopurams (gateway towers). The entire complex is enclosed by walls.
Pallava Architecture (600-900 CE)
Transitioned from rock-cut (excavated) to monolithic (carved from single rock) to structural (built with stones). Mahendravarman I started rock-cut; Narasimhavarman I created rathas; Rajasimha built structural temples.
Chola Architecture (850-1279 CE)
Emphasis on massive vimanas rather than gopurams. Known for monumental granite construction, bronze sculptures, and elaborate sculptural programmes. Rajaraja I and Rajendra I were master builders.
Pandya Contributions
Expanded existing temples, added gopurams, and developed the concept of temple-cities. Known for ornate sculptures and temple tanks (teppakulam).
Nayak Architecture (1529-1736 CE)
Towering multi-storeyed gopurams became taller than vimanas, vast prakarams, thousand-pillared halls (ayiram kaal mandapam), elaborate stucco figures, and temple corridors.
Temple Components
Garbhagriha (sanctum sanctorum) → Antarala (vestibule) → Ardha-mandapa (half-hall) → Maha-mandapa (great hall) → Gopuram (entrance gateway).
Vimana Classification
Named by number of storeys—Ekathala (1), Dvithala (2), Trithala (3), up to Shodashathala (16 storeys).
Vimana
Tower over the sanctum (garbhagriha)
Gopuram
Ornate gateway tower at prakaram entrances
Mandapa
Pillared hall for rituals and gatherings
Prakaram
Concentric enclosure walls around temple
Shikhara
Dome-shaped crown atop the vimana
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Early Resistance — History, Culture, Heritage & Socio-Political Movements in Tamil Nadu · 12 cards
Polygars (Palayakkarars)
Semi-independent feudal chieftains who held land grants called "palayams" under the Nayak rulers of Madurai and Vijayanagar. They collected revenue, maintained armies, and owed military service to their overlords.
British Revenue Demands
The East India Company's insistence on fixed revenue payments and disarmament of Polygars disrupted the traditional power structure, triggering armed resistance.
Kattabomman's Defiance
Veerapandiya Kattabomman of Panchalankurichi refused to accept British suzerainty, pay tributes regularly, or surrender his arms—becoming a symbol of Tamil pride and resistance.
Polygar Confederacy
Multiple Polygars, including Marudhu Pandiyar brothers of Sivaganga, Gopala Nayak of Dindigul, and Kerala Varma of Malabar, united against the British, forming one of the earliest coalitions against colonial rule.
Vellore Mutiny Causes
The 1806 uprising was triggered by new dress regulations (banning caste marks on forehead, mandating leather cockades, trimming beards) that offended both Hindu and Muslim sepoys' religious sentiments.
First Indian Sepoy Rebellion
The Vellore Mutiny (July 10, 1806) is historically significant as the first large-scale sepoy uprising against the British, occurring 51 years before the 1857 Revolt.
Veerapandiya Kattabomman
Palayakkarar of Panchalankurichi; executed on 16 October 1799 at Kayathar
First Polygar War
1799; Kattabomman defeated at Kallarpatti; captured through betrayal by Ettappan of Ettayapuram and the Raja of Pudukottai (Vijaya Raghunatha Tondaiman)
Second Polygar War
1800-1805; Led by Marudhu Pandiyar brothers (Periya Marudhu and Chinna Marudhu)
Marudhu Brothers
Rulers of Sivaganga; issued "Tiruchirappalli Proclamation" calling for united resistance; executed in 1801
Oomaithurai
Kattabomman's brother; continued resistance; killed in Second Polygar War
Vellore Mutiny Date
10 July 1806
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History of Tamil Society — History, Culture, Heritage & Socio-Political Movements in Tamil Nadu · 12 cards
Continuity of Tamil civilization
Unlike many ancient cultures, Tamil society shows unbroken cultural continuity from the megalithic period (1000 BCE) to the present, evidenced by language, scripts, and material culture.
Three crowned kings (Moovendar)
The Cheras, Cholas, and Pandyas were the three major dynasties that dominated the Sangam Age and continued to shape Tamil history through various revivals.
Maritime trade as economic backbone
Tamil ports like Poompuhar, Korkai, and Mamallapuram connected India with Rome, Southeast Asia, and China—trade defined Tamil prosperity across centuries.
Temple as social institution
From the Pallava period onwards, temples became not just religious centres but also economic hubs, land managers, educational institutions, and patrons of art.
Sangam polity structure
The Sangam Age featured a unique political organization with the king (Vendan), chieftains (Velir), and a council system, distinct from North Indian monarchies.
Bhakti integration
Tamil society uniquely synthesized Shaivism, Vaishnavism, Jainism, and Buddhism, with the Bhakti movement originating here before spreading northward.
Administrative innovation
Chola local self-government through village assemblies (Sabha, Ur, Nagaram) represents one of the earliest democratic systems documented in inscriptions.
Prehistoric
Timeline: Before 300 BCE · Key Features: Megalithic burials, iron use, Adichanallur urns
Sangam Age
Timeline: 300 BCE – 300 CE · Key Features: Three kingdoms, Sangam literature, Roman trade
Kalabhra Interregnum
Timeline: 300 – 600 CE · Key Features: "Dark age," Jain-Buddhist dominance
Pallava Period
Timeline: 275 – 897 CE · Key Features: Rock-cut temples, Mamallapuram, Grantha script
Imperial Chola
Timeline: 850 – 1279 CE · Key Features: Naval power, Brihadeeswarar, overseas conquests
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Prehistoric Tamil Nadu — History, Culture, Heritage & Socio-Political Movements in Tamil Nadu · 12 cards
Three-Age System in Tamil Nadu
Tamil prehistory follows the standard classification — Paleolithic (Old Stone Age), Mesolithic (Middle Stone Age), Neolithic (New Stone Age), and Iron Age/Megalithic period. Each represents technological advancement in tool-making and lifestyle.
Paleolithic Presence
Tamil Nadu has evidence of Lower Paleolithic habitation from about 1.5 million years ago at Attirampakkam (Tiruvallur district), making it one of Asia's oldest human occupation sites.
Neolithic Revolution
The shift from hunting-gathering to agriculture and animal domestication occurred around 2500 BCE in Tamil Nadu, with sites like Paiyampalli showing early farming communities.
Megalithic Culture
The Iron Age in Tamil Nadu (1500 BCE – 300 BCE) is characterized by megalithic burials — large stone structures erected over or around graves. This was not merely a burial practice but reflects a distinct cultural complex with iron technology, black-and-red ware pottery, and early urbanization.
Continuum to Sangam Age
Keezhadi excavations have established that megalithic culture transitioned directly into the urban Sangam civilization, challenging earlier theories of a cultural gap between prehistory and early historic periods.
Cultural Unity
Megalithic burial types (urn burials, dolmens, stone circles, cists) found across Tamil Nadu indicate shared religious beliefs and cultural practices among prehistoric Tamil communities.
Oldest Paleolithic site
Attirampakkam, Tiruvallur district — hand axes dated to about 1.5 million years ago
Mesolithic site
Teri sites in Thoothukudi district — microlithic tools
Major Neolithic sites
Paiyampalli (Tirupattur district, formerly Vellore), T. Narasipur (Mysuru district, Karnataka)
Adichanallur location
Thoothukudi district, on the banks of River Tamiraparani
Adichanallur significance
Largest urn burial site in India; excavated first in 1876 by German archaeologist Jagor, later by Alexander Rea (1900s), ASI (2004 onwards)
Keezhadi location
Sivaganga district, on the banks of River Vaigai
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Sangam Literature — History, Culture, Heritage & Socio-Political Movements in Tamil Nadu · 12 cards
Three Sangams
Tradition mentions First Sangam at Then-Madurai (lost to sea), Second Sangam at Kavatapuram (mostly lost), and Third Sangam at Madurai—only Third Sangam works survive.
Tolkappiyam
The oldest extant Tamil grammar, attributed to Tolkappiyar, a disciple of Agastya. It predates Sangam poetry and classifies Tamil grammar into Ezhuttu (phonology), Sol (morphology), and Porul (subject matter/themes).
Akam and Puram
Two broad thematic categories—Akam deals with love and inner/domestic life; Puram covers war, heroism, valor, and public/external life. This division runs through all Sangam anthologies.
Tinai (Landscape) Theory
Five eco-geographic regions, each associated with specific emotions, deities, occupations, and poetic themes:
Ettuthogai (Eight Anthologies)
Eight collections of shorter poems—Natrinai, Kurunthokai, Aingurunuru, Paditruppattu, Paripadal, Kalithogai, Ahananooru, Purananooru.
Pathupattu (Ten Idylls)
Ten longer poems, each a single composition—Thirumurugatrupadai, Porunaratrupadai, Sirupanatrupadai, Perumpanatrupadai, Mullaippattu, Nedunalvadai, Maduraikkanci, Kurincippattu, Pattinappalai, Malaipadukadam.
Secular Character
Unlike later devotional literature, Sangam works are predominantly secular, focusing on human emotions, warfare, and society rather than religious doctrine.
Ettuthogai
8 anthologies; 2,371 poems (2,381 for the whole Sangam corpus); both Akam and Puram themes
Pathupattu
10 long poems; all in Aatrupadai or descriptive genre
Purananooru
400 Puram poems; chief historical source for three crowned kings
Ahananooru
400 Akam poems; love themes across five Tinais
Paditruppattu
10 decades of poems (only 8 survive); exclusively praises Chera kings
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Justice Party — History, Culture, Heritage & Socio-Political Movements in Tamil Nadu · 12 cards
Non-Brahmin Movement Origins
The party arose from the broader non-Brahmin movement that sought to challenge Brahmin monopoly in administration, education, and social status in the Madras Presidency.
Dual Identity
The party had two names—"Justice Party" (named after its English newspaper Justice) was the popular name; "South Indian Liberal Federation" was the formal organizational name adopted in 1917.
Pro-British Stance
Unlike the Congress, the Justice Party cooperated with the British and participated in elections under dyarchy, believing constitutional progress would benefit non-Brahmins more than agitational politics.
Social Reform over Nationalism
The party prioritized caste-based social reform and communal representation over immediate independence, arguing that Swaraj under existing conditions would mean "Brahmin Raj."
Communal Reservation Policy
The party introduced proportional representation in government jobs based on community—the precursor to modern reservation policies in Tamil Nadu.
Elite Leadership
Despite championing non-Brahmin masses, the party was led primarily by wealthy landlords, businessmen, and aristocrats (zamindars, rajas, and merchants).
Transformation into Dravidar Kazhagam
In 1944, the declining Justice Party was taken over by Periyar E.V. Ramasamy and transformed into the Dravidar Kazhagam (DK), marking a shift from electoral politics to social movement.
Founded
20 November 1916, Victoria Public Hall, Madras
Formal Name
South Indian Liberal Federation (SILF) — adopted December 1917
Founders
T.M. Nair, P. Thyagaraja Chetty, C. Natesa Mudaliar
Key Publications
Justice (English), Dravidan (Tamil), Andhra Prakasika (Telugu)
First Ministry
1920 — A. Subbarayalu Reddiar (first non-Brahmin Chief Minister)
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Dance Forms — History, Culture, Heritage & Socio-Political Movements in Tamil Nadu · 12 cards
Bharatanatyam
is Tamil Nadu's classical dance form, originating from the Natya Shastra of Bharata Muni and the temple devadasi tradition; it was revived and popularized in the 20th century by E. Krishna Iyer and Rukmini Devi Arundale.
Sadir Attam
was the original name for the solo dance performed by devadasis in temples before the term "Bharatanatyam" was coined during the revival movement.
Karagattam
is a folk dance performed balancing decorated pots (karagam) on the head, dedicated to the rain goddess Mariamman; it has two variants—Sakthi Karagam (performed in temples) and Aatta Karagam (performed in streets with acrobatics).
Therukoothu
(street theatre) is a traditional open-air dramatic art combining dance, dialogue, and music, typically depicting episodes from epics like the Mahabharata (especially Draupadi Amman stories).
Oyilattam
is a rhythmic group dance performed by men using colorful kerchiefs, popular in southern Tamil Nadu during temple festivals and village gatherings.
Kavadi Attam
is a devotional dance performed during the worship of Lord Murugan, especially at Thaipusam, where dancers carry decorated kavadi (shoulder pole with offerings).
Kummi and Kolattam
are women's group dances—Kummi involves rhythmic clapping while Kolattam uses decorated sticks; both are performed during Pongal, Navaratri, and harvest festivals.
Poikkal Kudirai Attam
(dummy horse dance) features dancers tied to dummy horse frames, depicting cavalry; it is associated with Ayyanar worship in rural Tamil Nadu.
Kummi
Type: Folk · Key Features: Women's circle dance, clapping · Associated Deity/Festival: Pongal, harvest festivals
Kolattam
Type: Folk · Key Features: Women's stick dance · Associated Deity/Festival: Navaratri, temple festivals
Poikkal Kudirai
Type: Folk · Key Features: Dummy horse, martial theme · Associated Deity/Festival: Ayyanar worship
Mayilattam
Type: Folk · Key Features: Peacock costume dance · Associated Deity/Festival: Murugan temples
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Gandhian Phase in TN — History, Culture, Heritage & Socio-Political Movements in Tamil Nadu · 11 cards
Vedaranyam Salt March (April 1930)
Tamil Nadu's answer to Dandi March; C. Rajagopalachari (Rajaji) led volunteers from Tiruchirappalli to Vedaranyam on the Thanjavur coast to break the salt law.
Rajaji's leadership
As the foremost Gandhian leader in the Madras Presidency, Rajaji organised Congress activities, went to jail multiple times, and later served as India's only Indian Governor-General (1948–50).
Anti-Hindi Agitation of 1937–40
Opposed the compulsory teaching of Hindi in schools introduced by the Congress ministry under C. Rajagopalachari; led by Periyar E.V. Ramasamy and the Justice Party; resulted in two deaths and eventual withdrawal of the policy.
1965 Anti-Hindi Agitation
A second, more violent wave opposing the Official Languages Act deadline; led to deaths, self-immolations, and the eventual assurance that English would continue alongside Hindi.
Quit India Movement (1942)
After the "Do or Die" call, Tamil Nadu witnessed hartals, strikes, and underground resistance; leaders like K. Kamaraj, T. Prakasam, and students played key roles despite heavy repression.
Role of women and students
Women such as Rukmini Lakshmipathi participated in salt satyagrahas; students led processions and faced lathi charges during all three major agitations.
Dual struggle
Tamil Nadu's freedom movement was intertwined with the social justice movement—Periyar, though critical of Congress, mobilised masses against caste discrimination alongside anti-colonial protests.
Vedaranyam Salt Satyagraha
Year: 13–30 April 1930 · Leader(s): C. Rajagopalachari · Key Location: Vedaranyam, Thanjavur coast · Outcome: Rajaji arrested; boosted Congress membership in TN
First Anti-Hindi Agitation
Year: 1937–1940 · Leader(s): Periyar, Justice Party · Key Location: Madras Presidency · Outcome: 2 deaths (Thalamuthu, Natarajan); Hindi made optional in 1940
Quit India Movement
Year: August 1942 · Leader(s): K. Kamaraj, local Congress workers · Key Location: Across Tamil Nadu · Outcome: Mass arrests; underground leaflets; rail/communication sabotage
Second Anti-Hindi Agitation
Year: 1965 · Leader(s): Students, DMK · Key Location: Madurai, Chennai · Outcome: 70+ deaths; PM Nehru's assurance on English continued by successors
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Sangam Age — History, Culture, Heritage & Socio-Political Movements in Tamil Nadu · 10 cards
Three crowned kings (Muvendhar)
The Cheras, Cholas, and Pandyas were the dominant dynasties, constantly warring among themselves and with the Velir chieftains.
Sangam literature as historical source
Unlike North India's religious texts, Sangam poems (Ettuthogai and Pathupattu) provide secular, realistic accounts of society, warfare, love, and daily life.
Tinai concept
Tamil land was classified into five ecological zones—Kurinji (hills), Mullai (forests), Marutham (agricultural plains), Neithal (coastal), and Palai (desert)—each with specific occupations and deities.
Extensive Roman trade
Tamil ports conducted brisk trade with the Roman Empire, importing gold coins and exporting pepper, pearls, and textiles. Roman coins have been found at Arikamedu, Karur, and Madurai.
Hereditary monarchy with councils
Kings ruled with the help of five councils (Aimperunguzhu) and eight officials (Enperayam), indicating an organised administrative system.
Social structure
Society was divided by occupation rather than rigid caste—Arasar (rulers), Vaishyar (traders), Vellalar (agriculturists), and various artisan groups.
Women's relatively better status
Women poets like Avvaiyar contributed to literature; Sangam poems depict women with considerable social freedom, though patriarchy existed.
Cheras
Capital: Vanji (Karur) · Port(s): Muziris (Muchiri), Tondi · Emblem: Bow and Arrow · Famous Kings: Senguttuvan
Cholas
Capital: Uraiyur (later Puhar/Kaveripattinam) · Port(s): Puhar/Kaveripattinam · Emblem: Tiger · Famous Kings: Karikala Chola
Pandyas
Capital: Madurai · Port(s): Korkai · Emblem: Fish (Carp) · Famous Kings: Nedunjeliyan II (Talaiyalanganam fame)
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Tamil Literature — History, Culture, Heritage & Socio-Political Movements in Tamil Nadu · 12 cards
Sangam Literature is secular and realistic
Unlike later devotional works, Sangam poems focus on love (Agam) and war/society (Puram) without heavy religious overtones.
Tolkappiyam is the oldest extant Tamil grammar
Authored by Tolkappiyar, it predates even the Sangam anthologies and codifies Tamil grammar, poetics, and social norms.
Ettuthogai (Eight Anthologies) and Pathupattu (Ten Idylls)
These 18 works form the core Sangam corpus—Ettuthogai contains shorter poems while Pathupattu has longer narrative poems.
Thirukkural is a universal ethical text
Authored by Thiruvalluvar, its 1330 couplets cover Aram (virtue), Porul (wealth/polity), and Inbam (love)—making it secular, not tied to any single religion.
Twin Epics mark the post-Sangam transition
Silappathikaram (by Ilango Adigal) and Manimekalai (by Seethalai Sathanar) blend narrative with Jain and Buddhist philosophy respectively.
Bhakti literature divides into Vaishnavite (Nalayira Divya Prabandham) and Shaivite (Tevaram, Tiruvasagam)
Alvars and Nayanmars composed devotional hymns that transformed Tamil spiritual literature.
Modern Tamil Renaissance
Bharathiyar introduced nationalism and feminism; Bharathidasan championed rationalism and social reform through poetry.
Sangam (300 BCE–300 CE)
Key Works: Tolkappiyam, Ettuthogai, Pathupattu · Authors: Tolkappiyar, 473 poets including Avvaiyar, Kapilar · Special Features: Agam-Puram classification; Tinai concept
Post-Sangam (300–600 CE)
Key Works: Thirukkural, Silappathikaram, Manimekalai, Naladiyar · Authors: Thiruvalluvar, Ilango Adigal, Seethalai Sathanar · Special Features: Didactic and epic literature
Bhakti (600–1200 CE)
Key Works: Tevaram, Tiruvasagam, Nalayira Divya Prabandham · Authors: 63 Nayanmars, 12 Alvars · Special Features: Devotional hymns; temple worship tradition
Medieval (1200–1800 CE)
Key Works: Kamba Ramayanam, Periyapuranam · Authors: Kambar, Sekkizhar · Special Features: Tamil adaptations of Sanskrit epics
Modern (1800–present)
Key Works: Patriotic poems, short stories · Authors: Bharathiyar, Bharathidasan, Pudhumaipithan · Special Features: Nationalism, rationalism, realism
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Thirukkural — History, Culture, Heritage & Socio-Political Movements in Tamil Nadu · 12 cards
Structure of Thirukkural
The text contains 1,330 couplets (kurals) organized into 133 chapters, with 10 couplets each, divided into three books (paal) — Aram (Virtue), Porul (Wealth), and Inbam (Love).
Aram (Virtue/Dharma)
The first book with 38 chapters deals with ethical conduct, domestic virtue, and ascetic virtue — forming the moral foundation for individuals and society.
Porul (Wealth/Polity)
The second and largest book with 70 chapters covers statecraft, governance, administration, agriculture, friendship, and the qualities of rulers and ministers.
Inbam (Love/Pleasure)
The third book with 25 chapters explores conjugal love and romantic relationships in a refined, dignified manner.
Secular Nature
Thirukkural does not invoke any specific deity by name, avoids religious rituals, and bases its ethics on reason, human experience, and universal values rather than scriptural authority.
Universal Applicability
The teachings apply to all humans regardless of religion, caste, gender, or nationality — a key reason it earned the title "Universal Veda" (Ulaga Podhu Marai).
Rationalist Foundation
Values like truth, non-violence, justice, and compassion are presented through logical reasoning rather than divine commandment, aligning with humanist philosophy.
Influence on Tamil Identity
The Dravidian movement adopted Thirukkural as a symbol of Tamil rationalism, and it remains central to Tamil cultural identity today.
Author
Thiruvalluvar (also called Valluvar, Deivapulavar, Nayanar)
Period
Estimated 31 BCE or 4th–6th century CE (debated)
Total Couplets
1,330 kurals
Total Chapters
133 (called Athikarams)
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Rationalism — History, Culture, Heritage & Socio-Political Movements in Tamil Nadu · 12 cards
Rejection of Superstition
Periyar advocated questioning all religious rituals, myths, and customs that lacked rational basis. He famously conducted processions with garlands of slippers on Hindu deity idols to challenge blind worship.
Anti-Caste Philosophy
Rationalism was weaponized against the caste system. Periyar argued that caste was sustained through religious sanction and could only be dismantled through rational thinking and rejection of scriptural authority.
Atheism as Social Tool
Unlike philosophical atheism, Periyar's atheism was strategic — he rejected god-belief because he saw religion as the primary instrument of Brahminical social control and caste perpetuation.
Women's Liberation
Periyar linked women's subordination to religious texts and customs. He advocated women's education, widow remarriage, property rights, and reproductive autonomy — radical positions for his era.
Self-Respect Ideology
Rationalism formed the intellectual backbone of the Self-Respect Movement (1925). Self-respect marriages without priests, rejection of horoscopes, and inter-caste marriages were practical applications.
Scientific Temper
Periyar promoted modern education, scientific thinking, and questioned miracle claims. He believed superstition kept the masses ignorant and exploitable.
Critique of Epics and Texts
He critically analysed Ramayana and Manusmriti, arguing they promoted caste discrimination and subjugation of women and Shudras.
Social Revolution over Political Freedom
Periyar prioritized social reform over political independence, believing that freedom without social equality would merely transfer power to upper castes.
Birth of Periyar
17 September 1879, Erode
Title "Periyar"
Conferred in November 1938 by a women's conference (Chengalpattu hosted the first provincial Self-Respect Conference in 1929)
"Thanthai Periyar"
Father of rationalist and Dravidian movements in Tamil Nadu
Kudi Arasu
Tamil weekly started in 1925 — primary vehicle for rationalist ideas
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Carnatic Music — History, Culture, Heritage & Socio-Political Movements in Tamil Nadu · 12 cards
Carnatic vs Hindustani
Carnatic music evolved in South India with emphasis on compositions (kritis), structured ragas, and devotional themes; Hindustani music developed in North India with Persian-Arabic influences and more improvisation.
Raga and Tala
Raga is the melodic framework (a set of ascending/descending notes with specific rules), while Tala is the rhythmic cycle. Carnatic music uses 72 Melakarta ragas as parent scales.
The Musical Trinity (Sangita Mummoortigal)
Tyagaraja, Muthuswami Dikshitar, and Syama Sastri — all lived in the 18th-19th century around Thanjavur region and elevated Carnatic music to its classical zenith.
Compositions
Kriti is the main compositional form with Pallavi-Anupallavi-Charanam structure. Other forms include Varnam (warm-up piece), Padam (expressive), and Tillana (rhythmic).
Tamil Isai Movement
A 20th-century movement asserting the place of Tamil language and Tamil compositions in Carnatic music concerts, which were dominated by Telugu and Sanskrit.
Margazhi Music Season
The December-January music festival in Chennai is the world's largest cultural event of its kind, started in 1927-28 with the founding of the Madras Music Academy.
Guru-Shishya Parampara
Carnatic music is traditionally transmitted through direct teacher-student lineage, preserving stylistic nuances called "baani."
Tyagaraja (1767–1847)
Born in Thiruvarur; composed in Telugu; ~700 kritis including Pancharatna Kritis; devotee of Lord Rama; resided in Thiruvaiyaru
Muthuswami Dikshitar (1775–1835)
Born in Thiruvarur; composed in Sanskrit; known for compositions on various deities and temples; used Carnatic-Hindustani fusion elements
Syama Sastri (1762–1827)
Born in Thiruvarur; composed in Telugu; smallest output among Trinity (~300); known for swarajati compositions; devotee of Goddess Kamakshi
Purandaradasa (1484–1564)
"Pitamaha of Carnatic Music"; standardized teaching methodology; composed in Kannada
Tamil Isai Movement Year
Gained momentum in 1940s; Tamil Isai Sangam founded in 1943
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Role of Tamil Nadu in Freedom Struggle — History, Culture, Heritage & Socio-Political Movements in Tamil Nadu · 12 cards
Polygar System
Polygars (Palaiyakkarars) were feudal chieftains who collected revenue and maintained local armies under the Nayak rulers. British annexation of their territories triggered armed resistance.
Vellore Mutiny (1806)
The first large-scale sepoy mutiny against the British in India—51 years before 1857. It was triggered by new dress regulations affecting Hindu and Muslim sepoys.
Swadeshi and Boycott in Tamil Nadu
The partition of Bengal (1905) sparked a nationalist wave in Madras Presidency. Leaders like Bharathi, V.O.C., and Subramania Siva mobilised workers and students.
Labour Nationalism
V.O.C. Pillai uniquely combined freedom struggle with workers' rights—his Coral Mill strike (1908) was among India's earliest industrial actions linked to nationalism.
Vedaranyam Salt March (1930)
Tamil Nadu's parallel to Dandi March, led by C. Rajagopalachari, symbolised mass civil disobedience in the south.
Anti-Hindi Agitation (1937-40)
Though not directly anti-British, it shaped Tamil political identity and mobilised masses against perceived northern domination.
Role of Women
Rukmani Lakshmipathi became the first woman in India to be arrested during the Salt Satyagraha (1930).
Polygar Wars
Year: 1799-1805 · Significance: Armed resistance by Kattabomman, Marudhu Brothers
Veerapandiya Kattabomman executed
Year: 1799 · Significance: Hanged at Kayathar by the British
Vellore Mutiny
Year: July 10, 1806 · Significance: First sepoy mutiny; about 200 British troops killed or wounded
Bharathiyar's "Sudesa Geethangal"
Year: 1908 · Significance: Nationalist poetry fuelling freedom consciousness
Tirunelveli Uprising (Coral Mill Strike)
Year: March 1908 · Significance: V.O.C. and Subramania Siva arrested
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Tamil Nadu Freedom Leaders — History, Culture, Heritage & Socio-Political Movements in Tamil Nadu · 12 cards
Cultural nationalism as resistance
Bharathi weaponized Tamil poetry to ignite patriotic fervor, proving that literature could be as powerful as political action in colonial resistance.
Swadeshi as economic warfare
V.O.C.'s shipping venture directly challenged British commercial monopoly, demonstrating that economic self-reliance was integral to political freedom.
Extremist-Moderate divide in Tamil Nadu
Leaders like V.O.C. and Subramania Siva aligned with Tilak's extremist faction, while Rajaji later represented Gandhian constitutionalism.
Ultimate sacrifice symbolism
Thiruppur Kumaran's death while protecting the national flag became a powerful symbol of devotion that transcended his brief life.
Coral Mill Strike of 1908
This Tuticorin labor action, led by V.O.C. and Subramania Siva, was among India's earliest organized industrial strikes combining workers' rights with nationalist goals.
Pondicherry as refuge
French-controlled Pondicherry served as a safe haven for revolutionaries like Bharathi escaping British arrest warrants.
Post-independence statesmanship
Rajaji's journey from freedom fighter to India's first Indian Governor-General to opposition leader (Swatantra Party) shows the continuity from struggle to governance.
Subramania Bharathi
Birth-Death: 1882–1921 · Title/Epithet: Mahakavi (Great Poet) · Key Achievement: Revolutionary Tamil poetry; edited India, Vijaya
V.O. Chidambaram Pillai
Birth-Death: 1872–1936 · Title/Epithet: Kappalottiya Thamizhan (Tamil who sailed the ship) · Key Achievement: Founded Swadeshi Steam Navigation Company (1906)
Subramania Siva
Birth-Death: 1884–1925 · Title/Epithet: Orator of the South · Key Achievement: Co-led Coral Mill Strike; sentenced with V.O.C.
Thiruppur Kumaran
Birth-Death: 1904–1932 · Title/Epithet: Kodi Kaatha Kumaran (Flag-protecting Kumaran) · Key Achievement: Died holding the national flag during protest
C. Rajagopalachari
Birth-Death: 1878–1972 · Title/Epithet: Rajaji · Key Achievement: First Indian Governor-General; founded Swatantra Party
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Pallavas of Kanchi — History, Culture, Heritage & Socio-Political Movements in Tamil Nadu · 12 cards
Origin and Rise
The Pallavas emerged as a major power after the decline of the Sangam-age kingdoms. Their origin is debated — possibly Brahmin feudatories or connected to the Parthians. They rose to prominence under Simhavishnu (c. 575–600 CE).
Capital Kanchipuram
Also called Kanchi, it was one of the seven sacred cities of India. It housed both Shaiva and Vaishnava temples and was a centre of Sanskrit and Tamil learning.
Tripartite Struggle
The Pallavas were locked in prolonged conflicts with the Chalukyas of Badami (north) and the Pandyas (south). This triangular rivalry shaped Deccan politics for centuries.
Architectural Innovation
Pallavas pioneered the transition from rock-cut cave temples to monolithic rathas to structural stone temples — a complete evolution visible at Mahabalipuram.
Patronage of Sanskrit and Tamil
While Sanskrit flourished under royal patronage (Mattavilasa Prahasana by Mahendravarman I), Tamil devotional literature of Nayanars also received support.
Pallava Grantha Script
The Pallavas developed the Grantha script, which influenced the evolution of Tamil, Malayalam, Sinhala, and Southeast Asian scripts.
Maritime Trade and Southeast Asia
Pallava merchants and Brahmins carried Indian culture to Southeast Asia — Cambodia, Java, and Sumatra show Pallava architectural and scriptural influence.
Decline
The Pallavas weakened due to repeated Chalukya-Rashtrakuta attacks and were finally overthrown by the Cholas under Aditya I around 897 CE.
Period
c. 275 CE – 897 CE
Capital
Kanchipuram (Kanchi)
Founder of greatness
Simhavishnu (c. 575–600 CE)
Greatest builder
Narasimhavarman I (Mamalla) — Mahabalipuram
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Twin Epics and Bhakti Literature — History, Culture, Heritage & Socio-Political Movements in Tamil Nadu · 12 cards
Silappathikaram
is the first of the five great Tamil epics (Aimperum Kapiyangal), authored by Ilango Adigal, a Jain prince and brother of Chera king Senguttuvan.
Manimekalai
, written by Sithalai Sattanar (a Buddhist merchant-poet from Madurai), continues the story of Kovalan's daughter and promotes Buddhist ideals of renunciation.
Alvars
(12 saints) composed the Nalayira Divya Prabandham (4,000 verses) dedicated to Vishnu; their works were compiled by Nathamuni in the 10th century.
Nayanars
(63 saints) include the three Thevaram poets (Appar, Sambandar, Sundarar), who sang to Shiva (Thiruvasagam is by Manikkavasagar, who is not counted among the 63); their hymns form the Tamil Saiva Siddhanta canon called Panniru Thirumurai (12 sacred collections).
Author
Silappathikaram: Ilango Adigal · Manimekalai: Sithalai Sattanar
Period
Silappathikaram: 2nd century CE (post-Sangam) · Manimekalai: 2nd–3rd century CE
Religious leaning
Silappathikaram: Jain · Manimekalai: Buddhist
Protagonist
Silappathikaram: Kannagi · Manimekalai: Manimekalai (Kovalan's daughter by Madhavi)
Setting
Silappathikaram: Puhar, Madurai, Vanji · Manimekalai: Puhar, Kanchipuram, Naga Nadu
Central theme
Silappathikaram: Chastity, justice, fate · Manimekalai: Renunciation, Buddhist dharma
Literary form
Silappathikaram: 30 cantos (Kathaigal) · Manimekalai: 30 cantos
Famous episode
Silappathikaram: Kannagi burning Madurai · Manimekalai: Manimekalai receiving the magic bowl (Amudha Surabhi)
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Self-Respect Movement — History, Culture, Heritage & Socio-Political Movements in Tamil Nadu · 12 cards
Foundation and Purpose
Started in 1925 by E.V. Ramasamy (Periyar) to establish a society based on self-respect, rationalism, and equality — rejecting caste hierarchy and religious superstition.
Anti-Brahminism as Core Ideology
The movement identified Brahminical social order as the root cause of caste oppression; it rejected Vedas, Puranas, and Sanskrit as tools of domination over non-Brahmins.
Rationalism and Atheism
Periyar promoted scientific temper and rejected the existence of God, arguing that religion was invented to subjugate lower castes and women.
Women's Emancipation
The movement championed women's rights — advocating widow remarriage, women's education, property rights, divorce rights, and contraception — radical positions for that era.
Self-Respect Marriages
Introduced marriages without Brahmin priests, Sanskrit mantras, or religious rituals — conducted in Tamil with simple vow exchanges, legally recognized in Tamil Nadu since 1967.
Kudi Arasu Journal
Periyar's Tamil magazine (launched 1925) served as the movement's voice, spreading rationalist ideas and critiquing social evils.
Rejection of Congress
Periyar left the Indian National Congress in 1925 after the Kanchipuram conference rejected his proposal for caste-based reservations, catalyzing the Self-Respect Movement's formation.
Link to Dravidian Identity
The movement promoted a distinct Dravidian identity, glorifying Tamil language and culture while rejecting Aryan/North Indian cultural impositions.
Founder
E.V. Ramasamy Periyar
Year of Launch
1925
Chengalpattu
Venue of the first provincial Self-Respect Conference (1929), not of the 1925 launch
Key Publication
Kudi Arasu (Tamil weekly, 1925)
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Festivals and Customs — History, Culture, Heritage & Socio-Political Movements in Tamil Nadu · 12 cards
Pongal is a four-day harvest festival
celebrated in Thai month (January 14-17), marking the end of the winter solstice and the beginning of Uttarayanam (sun's northward journey). It is Tamil Nadu's most important festival.
Tamil New Year (Puthandu)
falls on the first day of Chithirai month (April 14), when families view the Kanni (auspicious items arranged the previous night) and read the Panchangam (almanac) for the year's forecast.
Festivals follow the Tamil solar calendar
with 12 months starting from Chithirai. Key months for festivals: Thai (Pongal), Chithirai (New Year), Aadi (Aadi Perukku), Karthigai (Karthigai Deepam).
Regional temple festivals (Thiruvizha)
are major cultural events combining religious worship with folk arts, trade fairs, and community gatherings lasting several days.
Aadi Perukku
celebrates the rising waters of rivers in Aadi month (July-August), honoring water bodies and fertility, especially along the Kaveri.
Karthigai Deepam
is the festival of lights in Karthigai month (November-December), with the Thiruvannamalai Mahadeepam being the most famous celebration.
Jallikattu
is a traditional bull-taming sport conducted during Pongal, recognized as part of Tamil cultural heritage and protected after significant legal battles.
Pongal
Tamil Month: Margazhi last day to Thai 3 · English Month: January 14-17 · Key Features: Four days: Bhogi, Thai Pongal, Mattu Pongal, Kaanum Pongal
Puthandu (Tamil New Year)
Tamil Month: Chithirai 1 · English Month: April 14 · Key Features: Kanni viewing, Panchangam reading, mango-neem mixture (Maanga Pachadi)
Chithirai Thiruvizha
Tamil Month: Chithirai · English Month: April-May · Key Features: Madurai Meenakshi Temple, Thirukalyanam, Azhagar procession
Natyanjali
Tamil Month: Maha Shivaratri · English Month: February-March · Key Features: Dance festival at Chidambaram Nataraja Temple
Thai Poosam
Tamil Month: Thai (Full Moon) · English Month: January-February · Key Features: Kavadi worship, Palani and Tiruchendur temples
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Imperial Cholas — History, Culture, Heritage & Socio-Political Movements in Tamil Nadu · 12 cards
Vijayalaya Chola (850 CE)
founded the Imperial Chola line by capturing Thanjavur from the Muttaraiyars, establishing the dynasty that would rule for over 400 years.
Rajaraja I (985–1014 CE)
consolidated Chola power by conquering the Cheras, Pandyas, Sri Lanka (Anuradhapura), and the Maldives; he built the Brihadeeswara Temple at Thanjavur.
Rajendra I (1014–1044 CE)
extended the empire to its maximum extent, conducting the famous Gangetic expedition (earning the title Gangaikonda Cholan) and the naval expedition to Southeast Asia (Srivijaya, Kadaram/Kedah).
Ur, Sabha, and Nagaram
were the three types of village assemblies — Ur for common villages, Sabha (or Mahasabha) for Brahmin settlements (Brahmadeya), and Nagaram for trading towns.
Uttaramerur inscriptions
(Parantaka I and later) provide detailed evidence of local self-government, including the kudavolai (pot-ticket) system for electing committee members.
The Chola Navy
was the most powerful in South Asia, enabling territorial expansion to Sri Lanka, Maldives, Lakshadweep, and Southeast Asian kingdoms — a unique achievement in Indian history.
Temple as an institution
Chola temples were not merely religious centres but also functioned as economic hubs, landowners, employers, and banks.
Rajaraja I's original name
Arulmozhi Varman
Brihadeeswara Temple completion
1010 CE (also called Rajarajeswaram)
Rajendra I's new capital
Gangaikondacholapuram
Naval expedition target
Srivijaya Empire (Sumatra, Malaya, Kadaram/Kedah) in 1025 CE
Title of Rajendra I
Gangaikonda Cholan, Kadaram Kondan
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Medieval Tamil Literature — History, Culture, Heritage & Socio-Political Movements in Tamil Nadu · 11 cards
Kamba Ramayanam is an independent epic, not a translation
Kambar adapted Valmiki's story but created an original Tamil masterpiece with distinct characterizations, philosophical depth, and poetic brilliance. The Tamil Ravanan is more dignified and tragic than in the Sanskrit original.
Periyapuranam is the 12th Tirumurai
It forms part of the Shaiva canonical literature and narrates the lives of the 63 Nayanmars (Shaiva saints), making it both hagiography and devotional poetry.
Chola royal patronage
Both Kambar and Sekkilar wrote under Chola kings—Kambar under Kulottunga III, Sekkilar under Kulottunga II. The Cholas actively promoted Tamil religious literature.
Bhakti as literary foundation
Medieval Tamil works are inseparable from Bhakti ideology. Devotion to Shiva or Vishnu shapes plot, characterization, and moral messaging.
Tamil poetic conventions continued
Despite religious subject matter, these works employ classical Tamil prosody (viruttam, kali, akaval) and maintain the aesthetic standards of earlier Sangam literature.
Social documentation
Periyapuranam provides valuable insights into medieval Tamil society—caste occupations, temple rituals, gender roles, and the radical equality Bhakti sometimes promoted.
Other important medieval works
Divya Prabandham (Vaishnava canon), Tiruvilayadal Puranam, Thiruvilaiyadal Puranam, and Jain/Buddhist contributions also fall within this broad period.
Kamba Ramayanam
Author: Kambar · Patron/Period: Kulottunga Chola III (12th century) · Key Details: 6 Kandams, ~10,500 verses, also called Ramavataram
Periyapuranam
Author: Sekkilar · Patron/Period: Kulottunga Chola II (12th century) · Key Details: 4,286 verses, lives of 63 Nayanmars, 12th Tirumurai
Thiruvilayadal Puranam
Author: Paranjothi Munivar · Patron/Period: 17th century (later work, sometimes grouped here) · Key Details: 64 divine sports of Shiva at Madurai
Divya Prabandham
Author: 12 Alvars · Patron/Period: 6th–9th century (compiled later) · Key Details: 4,000 verses, Vaishnava canon, Tamil Veda
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Socio-Political Movements in Tamil Nadu — History, Culture, Heritage & Socio-Political Movements in Tamil Nadu · 12 cards
Non-Brahmin Movement
Emerged as a response to Brahmin dominance in education, administration, and social life; sought proportional representation and social dignity for backward castes.
Justice Party (1916)
First organised political expression of non-Brahmin aspirations; pioneered communal reservation in government jobs and education under British rule.
Self-Respect Movement (1925)
Periyar's radical social reform initiative that rejected religious rituals, promoted inter-caste marriages without priests, and attacked caste system at its roots.
Rationalism as ideology
Rejection of superstition, blind faith, and religious orthodoxy; promotion of scientific temper and questioning of traditional practices.
Dravidar Kazhagam (1944)
Non-political organisation focused purely on social reform; Periyar's vehicle after leaving Congress, formed by renaming the Justice Party.
Dravidian Political Parties
DMK (1949) broke from DK to enter electoral politics; AIADMK (1972) split from DMK — both continue to dominate Tamil Nadu politics.
Anti-Hindi Agitation
1937-40 and 1965 movements against Hindi imposition became defining moments of Dravidian political identity.
Social Justice Legacy
Reservation policies, welfare schemes, and anti-caste legislation trace their roots to these movements.
Justice Party founded
1916, Madras — by T.M. Nair, P. Thyagaraja Chetty, C. Natesa Mudaliar
Justice Party's official name
South Indian Liberal Federation
Self-Respect Movement started
1925, by Periyar E.V. Ramasamy
Dravidar Kazhagam formed
1944, by Periyar (renamed from Justice Party)
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Dravidian Movement — History, Culture, Heritage & Socio-Political Movements in Tamil Nadu · 12 cards
From Social Reform to Political Power
The movement transitioned from the Justice Party's constitutional politics (1916) to Periyar's radical social reform (DK, 1944) to electoral politics under Annadurai (DMK, 1949) and eventually to the AIADMK split (1972).
Anti-Brahmin and Anti-Caste Ideology
The foundational principle was opposing the social hierarchy that placed Brahmins at the top; the movement sought dignity and equal opportunity for non-Brahmin communities.
Tamil Nationalism vs Indian Nationalism
The early movement advocated a separate Dravida Nadu; this secessionist demand was dropped after the 16th Constitutional Amendment (1963) made secession unconstitutional.
Rationalism and Atheism
Periyar's DK promoted atheism and criticized religious superstitions; while political parties softened this stance for electoral reasons, rationalist roots remain influential.
Anti-Hindi Agitation
Opposition to Hindi imposition (especially 1937-40 and 1965 agitations) became a unifying cause, cementing Dravidian parties' dominance in Tamil Nadu.
Welfare State Model
Dravidian governments pioneered social welfare schemes—free mid-day meals, free education, reservations—that became templates for national policy.
Populist Politics and Cinema Connection
The intertwining of Tamil cinema with Dravidian politics (Annadurai, Karunanidhi as scriptwriters; MGR, Jayalalithaa as actors-turned-politicians) created a unique political culture.
1916
Justice Party (South Indian Liberal Federation) founded in Madras
1925
Periyar leaves Congress after it rejected his demand for communal reservation
1937-40
First Anti-Hindi Agitation under Rajaji's compulsory Hindi policy
1944
Dravidar Kazhagam (DK) founded by Periyar
1949
Dravida Munnetra Kazhagam (DMK) founded by C.N. Annadurai after split from DK
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Tamil Nadu Culture and Heritage — History, Culture, Heritage & Socio-Political Movements in Tamil Nadu · 12 cards
Dravidian Cultural Identity
Tamil culture emphasizes linguistic pride, classical arts, and a distinct temple-centric civilization that developed independently from North Indian traditions, later synthesizing with pan-Indian elements.
Temple as Cultural Hub
Tamil temples were not merely religious centres but served as schools, hospitals, banks, and performance venues—the nucleus of social and economic life.
Bhakti Movement's Artistic Legacy
The devotional poetry of Alvars (Vaishnavite) and Nayanars (Shaivite) shaped Tamil music, dance, and temple rituals, creating an inseparable link between spirituality and art.
Living Traditions
Unlike museum cultures, Tamil art forms like Bharatanatyam, Carnatic music, and Karagattam remain actively practiced, continuously evolving while preserving classical roots.
Welfare as Cultural Policy
Post-independence Tamil Nadu pioneered social welfare schemes (mid-day meals, free education) that became integral to its modern cultural-political identity.
UNESCO Recognition
Tamil Nadu's cultural assets include three UNESCO World Heritage Sites—Chola Temples (Thanjavur, Gangaikondacholapuram, Darasuram), Mahabalipuram monuments, and Nilgiri Mountain Railway.
Carnatic Music Trinity
Tyagaraja, Muthuswami Dikshitar, Syama Sastri (all 18th-19th century, Thanjavur region)
Tamil Isai Movement
1940s movement to promote Tamil songs in Carnatic music; leaders include Annamalai Chettiar, T.K. Chidambaranatha Mudaliar
Bharatanatyam Revival
E. Krishna Iyer, Rukmini Devi Arundale (founded Kalakshetra, 1936)
Pongal Festival
Four-day harvest festival (Thai month, Jan 14-17); Bhogi, Thai Pongal, Mattu Pongal, Kaanum Pongal
Tamil New Year
Chithirai 1 (mid-April); follows Tamil solar calendar
Mid-Day Meal Scheme
Started by K. Kamaraj (1962-63); expanded by M.G. Ramachandran (1982) to include nutritious meals
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Welfare Initiatives in TN — History, Culture, Heritage & Socio-Political Movements in Tamil Nadu · 12 cards
Welfare State Philosophy
Tamil Nadu's governance since the 1960s has prioritized universal access to food, education, and healthcare as fundamental rights, not charity.
Mid-Day Meal Scheme (MDM)
Launched in 1956 by K. Kamaraj as a free midday meal scheme, it became the first state-wide school feeding initiative in India and later inspired the National MDM scheme.
Universal PDS Model
Tamil Nadu operates a universal Public Distribution System (not targeted), providing free rice (since 1 June 2011) to all cardholders, ensuring no exclusion errors.
Free Schemes as Electoral Promise
Free textbooks, uniforms, bicycles, laptops, and other items became defining features of Dravidian party governance from the 1970s onward.
Amma Scheme Series
Launched during J. Jayalalithaa's tenure (2011-16), these schemes branded with "Amma" prefix provided subsidized services—canteens, pharmacies, water, etc.
Cradle Baby Scheme
Introduced in 1992 to prevent female infanticide, allowing anonymous surrender of unwanted infants for adoption.
Kalaignar Insurance Scheme
Health insurance for below poverty line families, a precursor to national health schemes.
Social Security Pensions
Old age, widow, disabled, and destitute pensions disbursed through a comprehensive network.
Free Midday Meal Scheme
Year: 1956 · Leader/Government: K. Kamaraj · Key Feature: First post-independence state school meal scheme
Free Textbooks
Year: 1954 · Leader/Government: C. Rajagopalachari · Key Feature: Started for elementary students
Free School Uniforms
Year: 1957 · Leader/Government: K. Kamaraj · Key Feature: Two sets per student annually
Free Bus Pass for Students
Year: 1973 · Leader/Government: M. Karunanidhi · Key Feature: Extended later to women and elderly
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Later Pandyas and Vijayanagar — History, Culture, Heritage & Socio-Political Movements in Tamil Nadu · 12 cards
Pandya Revival (1216–1345 CE)
After Chola decline, the Later Pandyas under Maravarman Sundara Pandyan I and Jatavarman Sundara Pandyan I expanded their territory, defeating the Cholas and Hoysalas, making Madurai a prosperous capital.
Malik Kafur's Invasion (1311 CE)
The Delhi Sultanate general plundered Madurai, looting immense wealth from temples, marking the beginning of Pandya decline and political chaos.
Madurai Sultanate (1335–1378 CE)
An independent Muslim sultanate established in Madurai after breaking from Delhi. Ended by Kumara Kampana, Vijayanagar prince, in 1378 CE.
Vijayanagar Empire (1336–1646 CE)
Founded by Harihara I and Bukka Raya I at Hampi. Served as protector of Hindu traditions against Bahmani and later Deccan sultanates.
Nayankara System
Vijayanagar's military-feudal administrative system where Nayaks (governors) held territories in return for military service and tribute, similar to feudal land grants.
Nayak Kingdoms
After Vijayanagar's decline post-Talikota (1565), Nayaks of Madurai, Thanjavur, and Gingee became independent, ruling until the 17th-18th centuries.
Cultural Synthesis
Despite political upheavals, this period witnessed remarkable temple construction, Tamil literature flourishing, and Carnatic music traditions developing.
Later Pandya Peak
Jatavarman Sundara Pandyan I (1251–1268 CE) — conquered Kanchi, defeated Cholas finally
Marco Polo's Visit
Visited Pandya kingdom around 1288–1293 CE, described it as richest kingdom
Madurai Sultanate Founder
Jalaluddin Ahsan Khan (1335 CE)
Madurai Sultanate End
1378 CE by Kumara Kampana (Vijayanagar)
Vijayanagar Founders
Harihara I and Bukka Raya I (1336 CE)
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Modern Tamil Literature — History, Culture, Heritage & Socio-Political Movements in Tamil Nadu · 12 cards
Nationalist Literature
Bharathiyar pioneered patriotic poetry that merged freedom struggle with spiritual awakening, breaking from devotional themes to celebrate nationhood and human dignity.
Rationalist-Dravidian Literature
Bharathidasan carried forward Bharathiyar's style but infused it with Periyar's rationalism, making literature a vehicle for social revolution and anti-caste ideology.
Realist Short Story Movement
Pudhumaipithan introduced Western literary techniques—stream of consciousness, psychological realism—challenging romantic conventions with stories depicting harsh social realities.
Progressive Writers' Movement
Influenced by Marxism and humanism, writers like Ku. Pa. Rajagopalan and Jayakanthan focused on working-class struggles and urban alienation.
Feminist Consciousness
Modern Tamil literature saw early feminist voices through Bharathiyar's poems on women's liberation and later through women writers like Vai. Mu. Kothainayaki.
Language Reform
The modern period emphasized simplified, colloquial Tamil (Iyarkai Tamil) over heavily Sanskritized or archaic forms, making literature accessible to common people.
Prose Development
The novel and short story emerged as dominant forms, with Kalki, Akilan, and Jayakanthan creating narratives that entertained while addressing social issues.
Subramania Bharathiyar
Period: 1882–1921 · Major Works: Kuyil Pattu, Kannan Pattu, Panchali Sapatham · Core Themes: Patriotism, women's liberation, spirituality
Bharathidasan
Period: 1891–1964 · Major Works: Kudumba Vilakku, Iraniyan, Azhagin Sirippu · Core Themes: Rationalism, Dravidian pride, social equality
Pudhumaipithan
Period: 1906–1948 · Major Works: Ponnagaram, Sapa Vimochanam, Kadavulum Kandasami Pillaiyum · Core Themes: Psychological realism, existentialism, social criticism
Kalki Krishnamurthy
Period: 1899–1954 · Major Works: Ponniyin Selvan, Sivagamiyin Sapatham, Parthiban Kanavu · Core Themes: Historical fiction, romance, Tamil glory
Akilan
Period: 1922–1988 · Major Works: Chithirappavai, Vengayin Maindhan, Pavai Vilakku · Core Themes: Social reform, rural life, Jnanpith Award (1975)
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Periyar and Anna — History, Culture, Heritage & Socio-Political Movements in Tamil Nadu · 12 cards
Periyar's Core Philosophy
Self-respect, rationalism, anti-caste ideology, women's empowerment, and rejection of religious superstition formed the bedrock of his thought.
Self-Respect Movement (1925)
Founded by Periyar to promote marriages without Brahmin priests, inter-caste dining, and dignity for all castes — a direct challenge to orthodox Hindu rituals.
Dravidar Kazhagam (DK) — 1944
Periyar renamed the Justice Party as DK, shifting focus from electoral politics to social reform and Dravidian identity assertion.
Anti-Hindi Agitations
Periyar led the 1937-40 agitation against Hindi imposition (the 1965 agitation was led by the DMK and students), cementing Tamil linguistic pride.
Anna's Pragmatic Approach
While accepting Periyar's social ideals, Anna believed political power was essential for implementing reforms — leading to the DMK's formation.
Dravida Munnetra Kazhagam (DMK) — 1949
Anna split from DK to form DMK, a political party contesting elections while retaining Dravidian ideology.
Rising Sun Symbol
The DMK's election symbol, the rising sun, became iconic in Tamil Nadu politics.
1967 Electoral Victory
DMK's landslide win ended Congress rule in Tamil Nadu and marked the first non-Congress government in the state — Anna became Chief Minister.
Periyar's birth
17 September 1879, Erode
Periyar's death
24 December 1973, Vellore
Anna's birth
15 September 1909, Kancheepuram
Anna's death
3 February 1969, Chennai
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Archaeological Discoveries — History, Culture, Heritage & Socio-Political Movements in Tamil Nadu · 12 cards
Sangam Age Validation
Archaeological finds at Keezhadi and Adichanallur corroborate descriptions in Sangam literature about urban settlements, trade, and craftsmanship, transforming literary evidence into historical fact.
Independent Urban Development
Keezhadi excavations prove that Tamil civilization developed urban characteristics independently, not as a result of northern influence—a crucial finding for understanding Dravidian history.
Iron Age Antiquity
Adichanallur establishes that Iron Age culture in Tamil Nadu dates back to at least 1000 BCE, making it one of the earliest iron-using cultures in the subcontinent.
Indo-Roman Trade
Arikamedu provides physical evidence of flourishing maritime trade between ancient Tamil kingdoms and the Roman Empire during the early centuries CE.
Tamil-Brahmi Script
The discovery of Tamil-Brahmi inscriptions at multiple sites proves widespread literacy during the Sangam period, contradicting earlier theories about limited literacy in ancient South India.
Continuity of Culture
Recent excavations show cultural continuity from megalithic period through Sangam Age, indicating unbroken settlement patterns over centuries.
ASI Role
The Archaeological Survey of India (ASI) and Tamil Nadu State Department of Archaeology (TNSDA) jointly conduct excavations, with Keezhadi being a landmark TNSDA-led project.
Keezhadi
Location: Sivaganga district · Period: 6th century BCE · Excavation Started: 2015 · Key Agency: TNSDA/ASI
Adichanallur
Location: Thoothukudi district · Period: 1000 BCE onwards · Excavation Started: 1876 (first), 2004 (systematic) · Key Agency: ASI
Arikamedu
Location: Puducherry (near) · Period: 2nd century BCE–2nd century CE · Excavation Started: 1945 · Key Agency: ASI/French
Kodumanal
Location: Erode district · Period: 5th century BCE · Excavation Started: 1986 · Key Agency: ASI
Porunthal
Location: Dindigul district · Period: 5th century BCE · Excavation Started: 2009 · Key Agency: TNSDA
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Other Social Reformers — History, Culture, Heritage & Socio-Political Movements in Tamil Nadu · 8 cards
Vaikunda Swami (1809–1851)
was among the earliest social reformers in South India, preceding even the Brahmo Samaj's influence in the region. He challenged caste hierarchy in the princely state of Travancore and founded the Samathuva Samajam (Society of Equality).
Iyothee Thass (1845–1914)
was a Siddha physician and anti-caste activist who pioneered the Dalit Buddhist movement in Tamil Nadu. He established the Sakya Buddhist Society in 1898 (he had founded the Dravida Mahajana Sabha in 1891), arguing that Tamil Dalits were originally Buddhists who were degraded after Brahminical resurgence.
Ramalinga Adigalar (1823–1874)
, also known as Vallalar, was a saint-poet who preached universal compassion (Jeeva Karunyam) and rejected caste and religious distinctions. He established the Samarasa Vedha Sanmarga Sangam and the Sathya Dharma Salai (free food charity).
Ayyankali (1863–1941)
was a legendary social reformer from Kerala who fought for the rights of Pulayas and other oppressed castes. He led the Villuvandi Samaram (Bullock Cart Struggle) and established the Sadhu Jana Paripalana Sangham (1907).
Vaikunda Swami
Period: 1809–1851 · Region: Travancore · Key Organization: Samathuva Samajam · Core Philosophy: One caste, one religion, one God
Ramalinga Adigalar
Period: 1823–1874 · Region: Tamil Nadu · Key Organization: Samarasa Vedha Sanmarga Sangam · Core Philosophy: Universal compassion, soul light
Iyothee Thass
Period: 1845–1914 · Region: Tamil Nadu · Key Organization: Sakya Buddhist Society (1898) · Core Philosophy: Tamil Buddhism, anti-Brahminism
Ayyankali
Period: 1863–1941 · Region: Kerala · Key Organization: Sadhu Jana Paripalana Sangham (1907) · Core Philosophy: Education, temple entry, mobility rights
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Percentage — Aptitude and Mental Ability · 12 cards
Basic Definition
x% = x/100. To find x% of a number N, calculate (x × N)/100 or equivalently N × (x/100).
Fraction-Percentage Conversion
Any fraction a/b can be converted to percentage by multiplying by 100. Thus, a/b = (a/b) × 100 %.
Percentage Increase
When a quantity increases from A to B, percentage increase = [(B − A)/A] × 100. Always divide by the original value.
Percentage Decrease
When a quantity decreases from A to B, percentage decrease = [(A − B)/A] × 100.
Successive Percentage Change
For two successive changes of a% and b%, the net effect = a + b + (ab/100) %. This single formula handles both increases (positive) and decreases (negative).
Reverse Percentage
If a value after x% increase is V, then original = V × 100/(100 + x). For decrease, original = V × 100/(100 − x).
Population/Depreciation Formula
After n periods of r% growth, final value = P × (1 + r/100)ⁿ. For depreciation, use (1 − r/100)ⁿ.
Base Change Awareness
"A is what percent of B" and "B is what percent of A" give different answers. Identify the base (denominator) carefully.
x% of N
(x × N)/100
Successive change (a% then b%)
Net % = a + b + (ab/100)
Original after x% increase
Original = Final × 100/(100 + x)
Original after x% decrease
Original = Final × 100/(100 − x)
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HCF and LCM — Aptitude and Mental Ability · 12 cards
HCF (Highest Common Factor)
The largest number that divides two or more numbers exactly without leaving a remainder. Also called GCD (Greatest Common Divisor).
LCM (Lowest Common Multiple)
The smallest number that is exactly divisible by two or more given numbers.
Fundamental Relationship
For any two numbers a and b: HCF × LCM = a × b.
Co-prime Numbers
Two numbers with HCF = 1 are co-prime. Their LCM equals their product directly.
HCF of Fractions
HCF = HCF of numerators ÷ LCM of denominators
LCM of Fractions
LCM = LCM of numerators ÷ HCF of denominators
For three or more numbers
HCF × LCM need not equal the Product of numbers. The relationship only holds strictly for two numbers.
Division Method Logic
Repeatedly divide the larger number by smaller; the last non-zero remainder is HCF.
HCF × LCM = Product of two numbers
Core relationship for two numbers only
LCM of co-primes = Product of numbers
When HCF = 1
HCF of (a, b, c) = HCF of (HCF of a,b) with c
Finding HCF of multiple numbers
LCM of (a, b, c) = LCM of (LCM of a,b) with c
Finding LCM of multiple numbers
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Simple and Compound Interest — Aptitude and Mental Ability · 7 cards
Simple Interest (SI)
Interest is calculated only on the original principal throughout the entire period. The interest remains constant each year.
Compound Interest (CI)
Interest is calculated on principal plus previously accumulated interest. Interest grows each period because the base amount increases.
Compounding frequency matters
Interest can compound annually, half-yearly, quarterly, or monthly. More frequent compounding yields higher returns.
CI - SI difference
For the same P, R, T, compound interest always exceeds simple interest (except for T = 1 year with annual compounding, where they are equal).
Effective Rate
When compounding is more frequent than annual, the effective annual rate exceeds the nominal rate.
EMI (Equated Monthly Instalment)
Fixed monthly payment covering both principal and interest, used in loans. The interest component decreases and principal component increases over time.
Rule of 72
Quick estimate — money doubles in approximately 72/R years at R% compound interest.
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Area and Volume — Aptitude and Mental Ability · 12 cards
Area
measures the surface covered by a 2D shape (in square units); Volume measures the space occupied by a 3D object (in cubic units).
Perimeter/Circumference
is the total boundary length of a 2D figure—often needed as an intermediate step.
Lateral/Curved Surface Area (CSA)
excludes the base(s); Total Surface Area (TSA) includes all surfaces.
Unit consistency
is critical: convert all measurements to the same unit before calculating. 1 m = 100 cm; 1 m³ = 1000 litres.
Slant height (l)
for cones and pyramids differs from vertical height (h). Use Pythagoras: l² = h² + r².
Rectangle
Area: l × b · Perimeter: 2(l + b)
Square
Area: a² · Perimeter: 4a
Triangle (general)
Area: ½ × base × height · Perimeter: Sum of three sides
Right-angled Triangle
Area: ½ × base × perpendicular · Perimeter: a + b + hypotenuse
Equilateral Triangle
Area: (√3/4) × a² · Perimeter: 3a
Circle
Area: πr² · Perimeter: 2πr (circumference)
Semicircle
Area: ½πr² · Perimeter: πr + 2r
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Time and Work — Aptitude and Mental Ability · 12 cards
Work as a unit
The total work is often assumed as 1 unit (or taken as LCM of given days for easier calculation). Individual contribution is a fraction of this whole.
Rate of work = 1/Time
If A completes a job in 10 days, A's one-day work = 1/10 of the total job. This rate remains constant unless specified otherwise.
Combined work
When A and B work together, their combined rate = (1/A) + (1/B). Time to complete = 1/(combined rate).
LCM method
Taking total work as LCM of individual times converts fractions to whole numbers, making calculations faster and error-free.
Negative work
In pipes and cisterns, outlet pipes or leaks do negative work (emptying), while inlet pipes do positive work (filling). Net rate = filling rate - emptying rate.
Efficiency ratio
If A is twice as efficient as B, then A's rate = 2 × B's rate. Efficiency is inversely proportional to time taken.
Man-days concept
Total work = Number of workers × Number of days. This product remains constant for the same work.
Alternate day work
When people work on alternate days, calculate work done in a 2-day cycle, then find how many complete cycles are needed.
A completes work in 'n' days
A's 1-day work = 1/n
A and B working together
Time = (A × B)/(A + B) days
A, B, C working together
Time = 1/[(1/A) + (1/B) + (1/C)]
A works for 'd' days
Work done = d × (1/n) = d/n
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Time, Speed and Distance — Aptitude and Mental Ability · 12 cards
Basic Relationship
Speed = Distance/Time. This can be rearranged to Distance = Speed × Time and Time = Distance/Speed. All TSD problems reduce to manipulating this relationship.
Unit Conversion
To convert km/hr to m/s, multiply by 5/18. To convert m/s to km/hr, multiply by 18/5. This conversion appears in almost every train problem.
Relative Speed (Same Direction)
When two objects move in the same direction, relative speed = difference of their speeds. The faster object "gains" on the slower one.
Relative Speed (Opposite Direction)
When two objects move towards each other or away from each other, relative speed = sum of their speeds.
Average Speed
For equal distances at different speeds, average speed = 2ab/(a+b) where a and b are the two speeds. This is the harmonic mean, not the arithmetic mean.
Train Problems
A train covers its own length plus the length of the object it crosses. For a pole/person, distance = train length. For a platform/bridge, distance = train length + platform length.
Boats and Streams
Downstream speed = boat speed + stream speed. Upstream speed = boat speed − stream speed. The boat's speed in still water is the average of downstream and upstream speeds.
Meeting Point
When two objects start simultaneously towards each other, time to meet = total distance/(sum of speeds).
Speed = Distance/Time
Fundamental relationship
km/hr × (5/18) = m/s
Convert km/hr to m/s
m/s × (18/5) = km/hr
Convert m/s to km/hr
Time to cross pole = L/S
L = train length, S = train speed
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Puzzles — Aptitude and Mental Ability · 11 cards
Fixed vs. Variable Information
Always start with clues that give absolute positions ("A sits at the left end") before processing relative clues ("B sits two places from C"). Fixed points anchor your diagram.
Linear Arrangement
People sit in a row facing one direction (or sometimes two rows facing each other). "Left of" and "right of" depend on whose perspective — always assume the viewer faces the row unless stated otherwise.
Circular Arrangement
People sit around a table. "Clockwise" and "anticlockwise" matter. If all face the centre, immediate left = clockwise neighbour; if all face outward, it reverses.
Scheduling Logic
Map days/time slots on one axis, persons/tasks on another. Each slot typically has one assignment. Look for "before," "after," "immediately after," "not on Monday" type clues.
Grouping Constraints
Identify inclusion rules ("P and Q are in the same team") and exclusion rules ("R and S cannot be together"). Form mini-clusters first, then combine.
Negative Clues
"A does not sit adjacent to B" eliminates possibilities. Mark these after positive clues are placed.
Case-Splitting
When two or more valid scenarios exist mid-solution, maintain parallel diagrams (Case I, Case II). Subsequent clues usually eliminate one case.
Double-Check Consistency
After completing the arrangement, verify every clue against your final diagram before answering.
Linear (single row, n persons)
Total Positions: n · Neighbours per Person: End persons have 1 neighbour; others have 2 · Key Phrase Meaning: "Immediate left/right" = adjacent
Circular (n persons)
Total Positions: n (no ends) · Neighbours per Person: Every person has exactly 2 neighbours · Key Phrase Meaning: "Second to the left" = skip one clockwise
Two-row facing
Total Positions: 2n · Neighbours per Person: Opposite person + side neighbours · Key Phrase Meaning: "Faces" = directly opposite row
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Dice — Aptitude and Mental Ability · 7 cards
Standard Die Rule
On a standard die, opposite faces always sum to 7. So, 1 is opposite 6, 2 is opposite 5, and 3 is opposite 4.
Cube Structure
A cube has 6 faces, 8 vertices (corners), and 12 edges. Any face shares edges with exactly 4 other faces and is opposite to 1 face.
Adjacent Faces
If you can see two faces simultaneously in any view of a die, they are adjacent (share an edge), never opposite.
Common Face Method
When two positions of a die share a common visible face in the same orientation, the remaining two visible faces in each position help identify opposite pairs.
Rotation Principle
When a die is rotated, the top and bottom faces (or front and back, or left and right) swap positions depending on the axis of rotation.
Unfolded Die (Net)
When a cube is unfolded into a cross-shaped pattern, the face directly across from another (with one face gap) is opposite—not adjacent. The face two positions away in a straight line is opposite.
Three Different Views Rule
If a number/symbol appears on a different visible face in three views where the die is rotated, you can systematically eliminate and find opposites.
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Visual Reasoning — Aptitude and Mental Ability · 7 cards
Mirror Image (Lateral Inversion)
The reflection appears as if a mirror is placed to the right or left of the object. Left-right positions swap, but top-bottom remains unchanged. Think of how your reflection shows your right hand on the left side.
Water Image (Vertical Inversion)
The reflection appears as if the object is placed above a water surface. Top-bottom positions swap, but left-right remains unchanged. Imagine the object flipping upside down.
Paper Folding
A paper is folded one or more times, holes are punched, then unfolded. Each fold doubles the holes symmetrically about the fold line when opened.
Paper Cutting
Similar to folding but involves cutting shapes from folded paper. The cut pattern replicates across all layers created by folds.
Embedded Figures
A simple figure (question figure) is hidden within a complex design (answer figure). The hidden figure maintains exact shape, size, and proportions—only its orientation or position may vary.
Figure Completion
Identifying which piece completes a given incomplete figure, requiring visualization of missing portions.
Counting Figures
Counting total triangles, squares, or other shapes within a complex figure by systematic enumeration.
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Alphanumeric Reasoning — Aptitude and Mental Ability · 7 cards
Alphabet Position Values
A=1, B=2, C=3... Z=26. The reverse mapping (A=26, Z=1) is equally common. Memorize both directions.
Letter Shifting
Moving forward or backward in the alphabet by fixed positions. Example: C (+2) = E, and wrapping occurs at Z (Z+1 = A).
Coding-Decoding Logic Types
Letter substitution (A→D), number substitution (A→1), reverse order coding, and symbol-based coding.
Opposite Letters
Letter pairs summing to 27 are opposites. A↔Z, B↔Y, C↔X, D↔W, and so on. Quick formula: Opposite of letter at position n = letter at position (27-n).
EJOTY Formula
E=5, J=10, O=15, T=20, Y=25. These benchmark positions help calculate nearby letters instantly.
Alphanumeric Series Patterns
Combinations follow alternating rules—letters may follow one pattern while numbers follow another within the same series.
Place Value in Words
In coded words, each letter position may have different transformation rules (first letter +1, second letter +2, etc.).
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Data Interpretation — Aptitude and Mental Ability · 12 cards
Data formats
Tables present exact numbers in rows and columns; Bar graphs show comparisons across categories; Line graphs display trends over time; Pie charts show part-to-whole relationships (always totalling 100% or 360°).
Reading the question first
Before studying the entire data set, read what is asked. This saves time by focusing your attention on relevant rows, columns, or segments only.
Percentage of a whole
In pie charts, each sector = (sector value / total) × 100. Conversely, if percentage is given, value = (percentage / 100) × total.
Percentage change
Always calculated as [(New − Old) / Old] × 100. A common trap is dividing by the new value instead.
Ratio from data
To compare two quantities, express them as a fraction and simplify. Ratios can be read directly from bar heights or table values.
Approximation is essential
Round 197 to 200, or 49 to 50, to speed up multiplication and division.
Average calculation
Sum of all values divided by the number of values. For grouped data, use weighted average if frequencies differ.
Growth and CAGR basics
Year-on-year growth is calculated separately for each year; compound growth applies when successive percentages compound.
Percentage
(Part / Whole) × 100
Pie Chart Degree
(Value / Total) × 360°
Value from Degree
(Degree / 360) × Total
Ratio A : B
A / B (simplify by HCF)
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