General Awareness
Mauryan Pillars Mnemonic — Remember Ashoka's pillar edicts locations: "Some Lions Roar Loudly" = Sarnath, Lauriya-Nandangarh, Rampurva, Lauria-Areraj. Sarnath has the famous Lion Capital (national emblem).
Delhi Sultanate Chronology — "Gold Khilji's Tight Saree Lodges" = Gulam/Slave (1206), Khilji (1290), Tughlaq (1320), Sayyid (1414), Lodi (1451). Sequential order of five dynasties ruling Delhi.
Latitude-Longitude Trick — Latitude = Ladder (horizontal rungs, run east-west, measure north-south). Longitude = Long (vertical lines, run north-south, measure east-west). Never confuse the two.
Indian Ocean Currents Season — Winter (NE Monsoon): currents flow westward. Summer (SW Monsoon): currents reverse eastward. Monsoon winds drive surface current direction in the Arabian Sea.
UN Security Council Permanent-5 — "FRUCC" or "France Russia UK China + USA". These five nations hold veto power; remember by grouping Europe-3, Asia-2, America-1.
Delhi's Seven Cities Order — Qila Rai Pithora (1st), Siri (2nd), Tughlaqabad (3rd), Jahanpanah (4th), Ferozabad (5th), Dinpanah/Purana Qila (6th), Shahjahanabad (7th). Chronological foundation sequence matters for Delhi history questions.
Indian National Congress Presidents — First three: "DDBN" = Dadabhai Naoroji (1st session founder), but actually WC Bonnerjee (1885 Bombay), Dadabhai (1886 Calcutta), Badruddin Tyabji (1887 Madras). Founding era trivia.
General Intelligence and Reasoning
Coding Alphabet Position — A=1, Z=26. For reverse: A=26, Z=1. Quick calculation: Reverse = (27 - normal position). For coding questions involving +/- shifts on alphabets.
Direction After Turns — Start facing North. Right turn = clockwise (N→E→S→W). Left turn = anticlockwise (N→W→S→E). 180° turn = opposite direction. Draw mental compass for complex path questions.
Blood Relations Gender Trap — Cousin, friend, teacher, doctor = gender neutral unless specified. Don't assume. Nephew/niece, uncle/aunt, brother/sister distinguish gender explicitly.
Dice Opposite Faces Sum — Standard dice: opposite faces always sum to 7 (1-6, 2-5, 3-4). Use this to eliminate wrong answer choices in spatial dice problems.
Series Pattern Hierarchy — Check in order: (1) Difference between terms, (2) Ratio between terms, (3) Square/cube patterns, (4) Prime numbers, (5) Alternating operations. Saves time in number series.
Syllogism Venn Basics — "All A are B" = A circle inside B. "No A are B" = separate circles. "Some A are B" = overlapping circles. Draw quick diagrams for conclusion validity.
Arithmetical and Numerical Ability
Divisibility by 11 — Alternating digit sum difference. Example: 4829 → (4+2)-(8+9)=6-17=-11, divisible by 11. Subtract odd-position digits from even-position sum.
Percentage-Fraction Equivalents — 50%=1/2, 33.33%=1/3, 25%=1/4, 20%=1/5, 16.67%=1/6, 12.5%=1/8, 10%=1/10. Memorize for instant conversion without calculation.
Time-Speed-Distance Triangle — Draw triangle: Distance on top, Speed and Time at base. Distance = Speed × Time; Speed = Distance/Time; Time = Distance/Speed. Cover one to find formula.
Compound Interest Shortcut — For 2 years: CI - SI = (SI × Rate)/100. For 3 years: Difference = SI × [(300+R)/10000]. Saves calculation time on difference questions.
Average Addition Rule — When new number joins: New Average = Old Average + (New Number - Old Average)/Total count. Faster than recalculating entire sum.
Work Formula LCM Method — Take LCM of all individual days as total work units. Divide LCM by each person's days = their per-day work rate. Add rates for combined work problems.
Successive Percentage Change — Two changes of a% and b%: Net = a + b + (ab/100). Example: +10% then -10% = 10-10+(10×-10/100) = -1% net loss, not zero.
Hindi Language
Karak Yaad Karne Ki Trick — "कर्ता ने कर्म को करण से सम्प्रदान के लिए अपादान से संबंध का अधिकरण में" = आठों कारकों का वाक्य क्रम। विभक्तियाँ: ने, को, से, के लिए, से (अलग), का/के/की, में/पर।
Sandhi Ke Prakar — "स्व्यव्य" = स्वर संधि, व्यंजन संधि, विसर्ग संधि। तीन मुख्य प्रकार याद रखने का संक्षिप्त तरीका, प्रत्येक के उदाहरण अलग से तैयार करें।
Vilom Shabd Trick — उपसर्ग बदलो: अ/अन् (सम्भव-असम्भव), कु (पुत्र-कुपुत्र), नि (डर-निडर), बे (ईमान-बेईमान)। विलोम शब्द बनाने की सामान्य विधियाँ पहचानें।
English Language
Subject-Verb Agreement Rule — Each, every, either, neither, one = singular verb (is/was/has). Both, few, many, several = plural verb (are/were/have). Collective nouns context-dependent.
Preposition Time Rule — IN for months/years/centuries (in May, in 2024), ON for dates/days (on Monday, on 15th), AT for precise time (at 5 PM, at noon). Standard time prepositions.
Articles A/An Quick Rule — Use "An" before vowel sounds: an hour, an honest man, an MBA (em-sound), an FIR (eff-sound). Sound matters, not spelling letter.
Commonly Confused Words — Affect (verb) vs Effect (noun); Principal (main/head) vs Principle (rule); Stationary (still) vs Stationery (paper); Complement (complete) vs Compliment (praise). Spelling-meaning pairs.
Mathematics (TGT Maths)
Trigonometric Ratios — "Some People Have Curly Brown Hair Turning Permanently Black" = sin=P/H, cos=B/H, tan=P/B (reciprocals: cosec, sec, cot). Standard mnemonic for all six ratios.
Quadratic Formula Memory — x = [-b ± √(b²-4ac)]/2a. Discriminant D=b²-4ac tells roots: D>0 (real, distinct), D=0 (real, equal), D<0 (imaginary). Essential for solving equations quickly.
Differentiation Power Rule — d/dx(xⁿ) = n·xⁿ⁻¹. Bring power down, reduce power by 1. Example: d/dx(x⁵) = 5x