Delhi Sultanate — Study Notes

Overview

The Delhi Sultanate (1206–1526 CE) marks a transformative period in Indian history when five successive Turkish and Afghan dynasties ruled from Delhi. For the UPSSSC PET, this topic is critical because it bridges ancient India and the Mughal era, and questions frequently test dynasty sequences, key rulers, administrative innovations like the iqta system, and military campaigns. You must master the chronological order of dynasties—Slave (Mamluk), Khilji, Tughlaq, Sayyid, and Lodi—and understand their unique contributions and failures.

The Sultanate introduced new administrative practices, Persian as the court language, Indo-Islamic architecture (Qutub Minar, Alai Darwaza), and complex agrarian revenue systems. The iqta system, a form of land assignment to nobles in lieu of salary, became the backbone of military and revenue administration. The period also witnessed resistance from Rajput kingdoms, the Mongol invasions, and eventual consolidation of power that set the stage for Babur's conquest in 1526.

Questions range from direct factual recall (founder of a dynasty, capital shifts) to analytical ones (impact of iqta, reasons for Sultanate decline). Understanding administrative terms, military campaigns, and architectural landmarks will help you score confidently in the history section.

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Key Concepts

• **Five Dynasties in Sequence**: Slave/Mamluk (1206–1290), Khilji (1290–1320), Tughlaq (1320–1414), Sayyid (1414–1451), Lodi (1451–1526). Remembering this sequence is non-negotiable.

• **Iqta System**: Land assignments (iqtas) given to military commanders (muqtis/iqtadars) instead of cash salaries. The iqtadar collected revenue from assigned territory, maintained troops, and sent surplus to the Sultan's treasury. Not hereditary initially; Firoz Shah Tughlaq made it hereditary, weakening central control.

• **Mongol Threat**: Repeated Mongol invasions (Chengiz Khan's raids, later Timur's sack of Delhi in 1398) forced Sultans to maintain large standing armies and fortify frontiers, draining resources and shaping military policy.

• **Revenue Reforms**: Alauddin Khilji's price control (market regulations) and Ghiyasuddin Tughlaq's revenue surveys attempted to stabilize the economy. Muhammad bin Tughlaq's token currency experiment (brass coins replacing silver) failed due to mass counterfeiting.

• **Decentralization Under Tughlaqs**: Muhammad Tughlaq's capital shift to Daulatabad (1327) and his erratic policies weakened Delhi's control. Provincial governors declared independence, leading to rise of Bahmani, Vijayanagar, Bengal, and Jaunpur sultanates.

• **Indo-Islamic Culture**: Persian literature flourished; Amir Khusro blended Indian and Persian music/poetry. Architecture fused Indian craftsmanship with Islamic domes, arches, and calligraphy—Qutub Minar, Alai Darwaza, Tughlaqabad Fort.

• **Decline Factors**: Weak successors, invasions (Timur 1398), over-expansion without administrative capacity, rebellion of nobles, and finally Babur's victory at Panipat (1526) ended the Sultanate.

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Formulas / Key Facts

• **Slave Dynasty (1206–1290)**: Founded by Qutb-ud-din Aibak (slave of Muhammad Ghori). Iltutmish consolidated the empire, introduced silver tanka and copper jital. Razia Sultan (1236–1240), first woman ruler of India, faced noble opposition and was killed. Balban established "blood and iron" policy, introduced court ceremonies (sijda, paibos).

• **Khilji Dynasty (1290–1320)**: Founded by Jalaluddin Khilji (1290). Alauddin Khilji (1296–1316) most prominent—repelled Mongol invasions, conquered Gujarat, Ranthambore, Chittor, Mewar; annexed Deccan kingdoms (Devagiri, Warangal, Dwarasamudra, Madurai). Imposed market control (fixed prices, state-run markets) to maintain large army affordably.

• **Tughlaq Dynasty (1320–1414)**: Ghiyasuddin Tughlaq founded. Muhammad bin Tughlaq (1325–1351)—shifted capital Daulatabad–Delhi–Daulatabad, token currency failure, increased taxation in Doab, led to peasant rebellions. Firoz Shah Tughlaq (1351–1388) made iqtas hereditary, constructed canals, promoted welfare (hospitals, employment bureaus), but empire fragmented after his death.

• **Sayyid Dynasty (1414–1451)**: Founded by Khizr Khan (Timur's nominee). Weak dynasty controlling only Delhi and surroundings. Last ruler Alauddin Alam Shah voluntarily abdicated in favor of Bahlol Lodi.

• **Lodi Dynasty (1451–1526)**: Founded by Bahlol Lodi (Afghan). Sikandar Lodi (1489–1517) shifted capital to Agra, centralized administration. Ibrahim Lodi (1517–1526) alienated Afghan nobility; his tyranny led Daulat Khan Lodi (Punjab governor) to invite Babur. Defeated and killed at First Battle of Panipat (1526).

• **Iqta System Details**: Iqtadar = holder of iqta; had to maintain fixed number of cavalry; periodic audits by diwan-i-arz (military department). Alauddin Khilji made iqtas non-hereditary and frequently transferred iqtadars to prevent consolidation of power.

• **Architectural Landmarks**: Qutub Minar (Qutb-ud-din Aibak/Iltutmish); Alai Darwaza (Alauddin Khilji); Tughlaqabad Fort (Ghiyasuddin Tughlaq); Lodi Gardens tombs (Lodi dynasty).

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Worked Examples

**Example 1: Dynasty Sequence Question** Q: Arrange in chronological order: (i) Sayyid (ii) Khilji (iii) Tughlaq (iv) Slave *Solution*: Slave (1206) → Khilji (1290) → Tughlaq (1320) → Sayyid (1414). Correct order: (iv)–(ii)–(iii)–(i). *Tip*: Memorize the mnemonic **"Slaves Killed Tough Soldiers Loudly"** for Slave-Khilji-Tughlaq-Sayyid-Lodi.

**Example 2: Iqta System** Q: The iqta system under Delhi Sultanate was: (a) Permanent land grants (b) Revenue assignments to military commanders (c) Religious endowments (d) Taxation on traders *Solution*: (b). Iqta = land revenue assignment, not ownership. The iqtadar collected revenue, maintained troops, remitted surplus. It was temporary and transferable under most Sultans (except Firoz Tughlaq who made it hereditary).

**Example 3: Alauddin Khilji's Reforms** Q: Alauddin Khilji introduced market reforms primarily to: (a) Increase trade with Central Asia (b) Maintain a large standing army at low cost (c) Promote handicrafts (d) Punish merchants *Solution*: (b). Fixed prices for grains, cloth, horses ensured cheap provisioning for his huge cavalry, crucial for Mongol defense and Deccan campaigns. State-controlled markets (shahana-i-mandi) and intelligence network enforced price ceilings.

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Common Mistakes

• **Confusing dynasty founders**: Students often mix up Qutb-ud-din Aibak (Slave dynasty) with Alauddin Khilji (Khilji dynasty). **Fix**: Remember Aibak was slave of Ghori; Khilji overthrew the last Slave ruler.

• **Iqta = Jagir confusion**: Iqta is often confused with the Mughal jagir system. **Fix**: Iqta was typically non-hereditary revenue assignment (except under Firoz Tughlaq), while jagir under Mughals had similar function but different administrative terms (mansabdari linked).

• **Muhammad Tughlaq's capital shift misremembered**: Many recall only "shifted capital to Daulatabad" but miss that he attempted to shift back to Delhi after failure. **Fix**: Note the round-trip: Delhi → Daulatabad → back to Delhi, causing enormous hardship and depopulation.

• **Timur's invasion date**: Often confused with Mongol invasions under Alauddin. **Fix**: Timur invaded in **1398** during Tughlaq decline, not during Khilji period. Alauddin fought Mongols (~1299–1308).

• **Razia Sultan's dynasty**: Sometimes placed in wrong dynasty. **Fix**: Razia ruled during **Slave dynasty** (1236–1240), daughter of Iltutmish, not Khilji or Tughlaq.

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Quick Reference

• **Dynasty Order**: Slave (1206) → Khilji (1290) → Tughlaq (1320) → Sayyid (1414) → Lodi (1451) → ends 1526 at Panipat.
• **Key Slave Rulers**: Qutb-ud-din Aibak (founder), Iltutmish (consolidator), Razia Sultan (first woman ruler), Balban (despotic centralization).
• **Key Khilji Ruler**: Alauddin Khilji—market reforms, Mongol defense, Deccan conquest.
• **Key Tughlaq Rulers**: Muhammad bin Tughlaq (failed experiments), Firoz Shah Tughlaq (welfare, hereditary iqta).
• **Iqta System**: Revenue assignment to nobles/military officers; non-hereditary except under Firoz; maintained army without cash salaries.
• **End of Sultanate**: Ibrahim Lodi defeated by Babur at First Battle of Panipat, 21 April 1526, founding Mughal Empire.