Sher Shah Suri defeated Humayun at _________ in AD 1539. 

Correct option is D

·    In AD 1539, Sher Shah Suri (then known as Sher Khan) defeated Humayun, the Mughal emperor, at the Battle of Chausa.

·   This decisive battle took place near the town of Chausa (present-day Bihar) and marked a significant turning point in Indian history, as Sher Shah Suri’s victory led to his ascendancy and the eventual establishment of the Suri Empire in North India.

·   Following this, Sher Shah Suri forced Humayun to retreat, and for a period, he effectively controlled much of northern India.

Additional Information:

• The Battle of Chausa was followed by another battle in 1540, the Battle of Kanauj, in which Sher Shah Suri defeated Humayun again, securing his rule over much of northern India.
• Sher Shah Suri is credited with administrative reforms, including the introduction of a new currency (the Rupiya) and the improvement of infrastructure, such as the Grand Trunk Road.

Other Options:

• Kannauj : Humayun was defeated by Sher Shah Suri in 1540 at Kanauj, but this was the second major battle, not the first.
• Lahore : There was no major battle between Sher Shah Suri and Humayun in Lahore in 1539.
• Panipat : The Battle of Panipat, a major battle in Indian history, took place in 1526 (first) and 1556 (second), but it was not between Sher Shah Suri and Humayun.