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.
Battle of Chausa was fought near Buxar. Humayun was badly defeated and Sher Khan adopted the title of Sher Shah. Humayun barely escaped with his life from the battle field.