The Tabaqat-i-Nasiri which was compiled in 1260 CE by the author Minhaj-i-Siraj and it gives a complete account of Muhammad of Ghur’s conquest of India and the history of the Delhi Sultanate up to 1260 CE.
Qutbuddin Bakhtiar Kaki, who was born in Aush in Farghana was the leading disciple of Khwaja Muinuddin Chishti came to Delhi where he was warmly welcomed and extended patronage by lItutmish.