Sur Empire
When Kamran returned to Lahore, Humayun, with his other brothers Askari and Hindal, marched to meet Sher Shah east of Agra at the battle of Kannauj on 17 May 1540. Humayun was soundly defeated. He retreated to Agra, pursued by Sher Shah, and thence through Delhi to Lahore. Sher Shah's founding of the short-lived Sur Empire, with its capital at Delhi, resulted in Humayun's exile for 15 years in the court of Shah Tahmasp I.