Muhammad Sultan
In 1537, Sher Shah Suri had gradually overrun all the countries on the southern or Behar side of the Ganges; and Muhammad Sultan Mirza, had raised the standard of revolt in the upper provinces. The long absence of the Emperor Humayun had latterly encouraged them to act with greater boldness and security. Muhammad Sultan, having gained possession of a great portion of the countries on the left bank of the Ganges, had fixed the seat of his government at Bilgram, opposite to Kannauj, and had gained sufficient strength to send his son, Ulugh Mirza, with a large force to besiege Juanpur; while Shah Mirza, another of his sons, reduced Kara-Manikpur. Kannauj too had fallen into his hands.