The Mongols under Genghis Khan invaded India during the reign of

1. Genghis Khan led the Mongol forces towards India in the early 13th century. 2. In 1221, Genghis Khan reached the banks of the Indus River while pursuing Jalal ad-Din Mingburnu, the Shah of the Khwarazmian Empire. 3. At that time, the ruler of the Delhi Sultanate was Shamsuddin Iltutmish (reign 1211–1236). 4. Iltutmish prudently refused asylum to Jalal ad-Din, thereby avoiding a direct confrontation with Genghis Khan's formidable army. Genghis Khan eventually turned back from the Indus without launching a full-scale invasion into the heartland of the Delhi Sultanate. 5. Balban, Feroze Tughlaq, and Muhammad bin Tughlaq ruled later and faced subsequent Mongol incursions, but the invasion during Genghis Khan's time occurred during Iltutmish's reign.