Q. In which of the following years Humayun defeated the Afghan forces which had conquered Bihar and Jaunpur?
Answer: 1532 A.D.
Notes: Humayun, son of Babur, became emperor at 23. In 1532, he defeated Afghan forces at the Battle of Daurah, securing Bihar and Jaunpur and temporarily halting Sher Shah Suri's resurgence. His use of artillery and early matchlock firearms highlighted Mughal military advancements.