1½ Tanka – Nasir Ud Din Ahmad Shah I
Nasir ud din Mahmud Shah was the eighth sultan of the Mamluk Sultanate (Slave dynasty). The Tabaqat-i Nasiri, written by the court historian Minhaj-i-Siraj, is dedicated to him. It is the only available contemporary source of history of his reign and thus undoubtedly the most reliable source. He was a son of Sultan Sultan Iltutmish. He ascended to the throne of Delhi Sultanate in 1246 at the tender age of 17 or 18 after the chiefs replaced Ala ud din Masud, when they felt that Masud began to behave as a tyrant.