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.
The Suhrawardi order which was founded by Shihabuddin Suhrawardi accepted the maintenance grants from the Sultans. The Suhrawardi order was established in India by Bahauddin Zakariya. Suhrawardis were active in Punjab and Sindh region.