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 land revenue system adopted by Akbar was largely based on Sher Shah’s system. However Akbar introduced slight modifications and his system was called Zabti or Bandobast system, which was further improved by Raja Todar Mal.
Humayun ruled from 1530 to 1556 A.D. He succeeded his father Babur at the young age of 23. He had to cope up with number of problems left behind by Babur.