Career
During his reign in 1398, Amir Timur the Chagtai ruler invaded India. He carried away with him a large booty from Delhi and the surrounding area. Soon after the invasion, the Tughlaq dynasty came to an education
"Foreign about three years, from 1394 to 1397..Sultan Mahmud, a grandson of Firuz Shah Tughlaq, was recognized as king in Old Delhi, while his relative Nusrat Shah, claimed similar rank in Firuzabad."
Successor
The succeeding sultan of the Delhi Sultanate was Khizr Khan, the first of the Sayyid dynasty.
