Battle of Chausa

VictorAfghans of BiharSher Khan Sur
1539vs
Mughal armyHumayun

After months of waiting in the monsoon by the Ganga, Humayun was caught off guard by Sher Khan at dawn. His army was cut down or drowned, and Sher Khan took the royal title of Sher Shah.

Date: 26 June 1539Where: Chausa, on the Ganga near Buxar, BiharType: Battle
Photo: Gbaadkar · CC BY-SA 3.0
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Cite

MLA

“Battle of Chausa.” Hindu History, 2026, https://www.hinduhistory.in/battles/battle-of-chausa-1539/. Accessed .

APA

Hindu History. (2026). Battle of Chausa. Retrieved , from https://www.hinduhistory.in/battles/battle-of-chausa-1539/

Result

Sher Khan surprised the Mughal camp at dawn and destroyed Humayun’s army; Humayun barely escaped across the Ganga.

01Bengal and back

Sher Khan Sur, an Afghan of Sasaram, had made himself master of Bihar and overrun Bengal. Humayun marched east, entered Gaur in 1538 and stayed there for months while Sher Khan cut the roads behind him. When Humayun turned back towards Agra in 1539, he found the Afghans across his path at Chausa, where the Karmanasa meets the Ganga. For weeks the two armies faced each other, and the rains flooded the Mughal camp.

02The water-carrier’s skin

Before dawn on 26 June Sher Khan, who had made a show of marching away, fell on the camp from three sides. The Mughals were caught unarmed and in their tents. Humayun rode his horse into the Ganga and was nearly drowned; a water-carrier named Nizam got him across on his inflated skin, and Humayun later let him sit on the throne for half a day. Sher Khan crowned himself Sher Shah. A year later he finished Humayun at Kannauj.

Why it matters

Chausa turned the Afghan recovery into an empire: Sher Shah became sultan and the Mughals were driven from India within a year.