Mongol Invasions

From the Battle of Indus to the siege of Siri Fort, a century of relentless cavalry raids reshaped the subcontinent.

From 1221 to 1306, the Mongol Empire launched numerous invasions into the Indian subcontinent, with later raids executed by commanders of the Chagatai Khanate. These forces occupied parts of the region for decades, pushing deep into the hinterland until reaching Delhi's outskirts, where they suffered serious defeats against the Delhi Sultanate. While chroniclers framed these conflicts as a binary struggle between Tengrist Mongols and a Muslim community surrounded by Hindus and Buddhists, the reality was far more complex; many sultanate elites and monarchs were of Turkic or Mongol ethnicity, having previously served in Mongol armed contingents.

Quick Facts

Conflict: Mongol invasions of India
Part of: the Mongol invasions and conquests
Date: 24 November 1221–1327
Location: Northern Indian subcontinent
Result: Delhi Sultanate victory

Lore & Background

The campaign began in 1221 when Genghis Khan personally led the main force pursuing Jalal al-Din to the Indus River. In 1231, Jalal al-Din was killed by Kurdish bandits in Kurdistan, ending the Khwārazm-Shāh dynasty; he was never defeated by General Chormaqan in India. By 1241, a Mongol force invaded the Indus valley, besieging and sacking Lahore on December 30 before withdrawing following Ögedei's death. The Chagatai Khanate later dominated the frontier with near-constant hit-and-run raids between 1241 and 1306, targeting agricultural infrastructure in Multan, Sindh, and Lahore to cripple the Sultanate's economy.

Reader's Guide

Historical records indicate that while chroniclers exaggerated Mongol numbers to 100,000–200,000 cavalry, actual armies likely ranged between 10,000 and 30,000, often organized into tumens of 10,000 men. Success against these forces required the Delhi Sultanate to organize its army to the highest efficiency under rulers like Ghiyas ud din Balban (r. 1266–1287), who refused to entrust authority to Hindus and stayed near his capital to counter invasion threats.

A key turning point occurred in 1254–1255 when the Kashmiri king killed the appointed Buddhist master Otochi, prompting Möngke Khan's generals Sali and Takudar to invade, kill the king, and restore Mongol control over Kashmir for many years. In 1296–1297, Chagatai tumens were defeated multiple times by the Delhi Sultanate, demonstrating that while the Qara'unas and Chagatais launched persistent raids, they could be repelled with disciplined defense and rapid mobilization.

Did You Know?

The suburb of Lahore where 4,000 converted Mongol captives lived was named Mughalpura.
Chroniclers like Minhaj-i-Siraj Juzjani recorded invasions of hundreds of thousands, though actual Mongol forces likely numbered between 10,000 and 30,000 cavalry.
During the 1303 invasion, Alauddin Khalji was forced to seek shelter in a heavily guarded camp at the under-construction Siri Fort because Delhi itself was left unprotected.
The Mongol leader Qutlugh Khwaja was never captured; after his failed attempt to trick Zafar Khan during a feigned retreat, he retreated to Afghanistan where he later died from wounds or illness.