Under the Mansabdari system the mansab rank was not hereditary and the lowest rank was 10 and the highest was 5,000 for the nobles. All appointments and promotions as well as dismissals in the Mansabdari system were directly made by the emperor.
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.