UPSC Notes / Medieval Indian History / Chapter 4
Chapter 4 of 24

Delhi Sultanate

Five dynasties across three centuries — Slave, Khalji, Tughlaq, Sayyid, and Lodi — and the administrative innovations that shaped medieval North India.

📖 ~16 min read 🕌 Medieval Indian History

Introduction

The Delhi Sultanate (1206-1526 CE) comprised five successive dynasties ruling from Delhi, marking the first sustained period of Muslim political dominance over large parts of North India, and introducing significant administrative, architectural, and cultural innovations.

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Image space — add illustration here
Suggested: Qutub Minar, Delhi — the towering minaret begun by Qutbuddin Aibak
Suggested visual: Qutub Minar, symbol of the early Delhi Sultanate

The Five Dynasties

DynastyPeriodKey Ruler(s)
Slave (Mamluk)1206-1290 CEQutbuddin Aibak (founder, began Qutub Minar); Iltutmish (consolidated the Sultanate, introduced the silver "tanka" and copper "jital"); Razia Sultana (first and only woman ruler of the Sultanate); Balban (centralised royal authority, "Kingship theory")
Khalji1290-1320 CEAlauddin Khalji (market control reforms, defeated Mongol invasions, expanded into the Deccan)
Tughlaq1320-1414 CEMuhammad bin Tughlaq (transfer of capital to Daulatabad, token currency experiment); Firoz Shah Tughlaq (welfare measures, canal building)
Sayyid1414-1451 CEKhizr Khan (founder); weak, declining central authority
Lodi1451-1526 CEBahlul Lodi (founder); Ibrahim Lodi (defeated by Babur at the First Battle of Panipat, 1526, ending the Sultanate)

Key Ruler Profiles

Alauddin Khalji (r. 1296-1316 CE)

  • Introduced strict market control regulations (price controls on essential goods) to maintain a large, affordably-paid standing army.
  • Successfully repelled multiple Mongol invasions.
  • Extended Sultanate control into the Deccan and South India through his general Malik Kafur.

Muhammad bin Tughlaq (r. 1325-1351 CE)

Flowchart — Muhammad bin Tughlaq's Controversial Experiments
Transfer of capital from Delhi to Daulatabad (Deccan) — reversed after hardship for the migrating population
Introduction of token (copper) currency — failed due to widespread counterfeiting, later withdrawn

Both experiments, though sometimes viewed as visionary in intent, are remembered as administrative failures due to poor implementation.

Sultanate Administration

InstitutionFunction
SultanSupreme ruler; theoretically owed nominal allegiance to the Abbasid Caliph in some periods
Iqta SystemLand assignments given to nobles/officers (Iqtadars) in lieu of salary, in exchange for administrative and military service — a key Sultanate administrative innovation
Diwan-i-WizaratFinance department, headed by the Wazir (chief minister)
Diwan-i-ArzMilitary department
Diwan-i-InshaRoyal correspondence department

Mongol Threat

The Delhi Sultanate faced repeated Mongol invasion attempts (especially under Alauddin Khalji), which it successfully repelled — a significant achievement that arguably shielded much of India from the devastation Mongol invasions caused elsewhere in Asia and the Middle East.

✅ UPSC Focus: Five-dynasty sequence and founders · Razia Sultana as the only woman Sultan · Alauddin Khalji's market reforms · Muhammad bin Tughlaq's two failed experiments · Iqta system's function · First Battle of Panipat (1526) ending the Sultanate.

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