Q. Battle of Chausa took place in which year?
Answer: 1539 A.D.
Notes: The Battle of Chausa occurred in 1539 A.D. near Buxar, where Humayun was defeated by Sher Shah Suri, who then rose to establish the Suri Empire. Humayun escaped by swimming the Ganges with help from a water carrier, revealing his poor military strategy and the Mughal Empire's internal weaknesses.