Sher Shah Suri was born in 1472 or 1486, yet by the age of 59, he had dismantled the Mughal Empire and seized the throne of Northern India. His rise began not with a coronation, but with a relentless series of military campaigns that started in 1537. He targeted the Bengal Sultanate, prompting its ruler to beg for help from Humayun, the Mughal emperor. Humayun mobilized an army in July 1537 and advanced to Chunar, laying siege to the fort for over six months. Despite the efforts of Rumi Khan to capture the city quickly, the siege dragged on until the fort finally fell. Sher Shah then led a second invasion into Bengal, besieging Gauda, which fell to Afghan forces in April 1538. With the fort of Rohtasgarh also falling under his control in March 1538, he used it as a base to house Afghan families and store the loot from the war, transferring the wealth from Gaur to Rohtasgarh. This victory marked his first coronation, but the true test of his power was yet to come. Humayun, refusing to leave Bengal in the hands of a hostile state, continued the war, but Sher Shah's strategic brilliance would soon turn the tide against the Mughals.
The Battle That Changed History
The Battle of Chausa, fought on the 26th of June 1539, stands as one of the most decisive moments in Indian history. Humayun, having been stranded at Gauda due to poor weather and a lack of communication lines, rushed to settle for peace with Sher Khan. He crossed the Karmanasa River, where he could easily be attacked by the Afghans. Sher Shah, seeing the fragile state of the Mughal army, attacked the Mughal army led by Humayun at the Battle of Chausa. The Afghans descended on the Mughals and caught them off guard, resulting in the complete rout of the Mughals. Humayun barely escaped with his life, and the Mughals suffered over 7,000 dead, with many prominent noblemen dead. Following this defeat, Humayun returned to Agra and restored order after disturbances from his brother, Hindal Mirza. He mobilized a large force, advancing with an army of 40,000, while Sher Shah amassed 15,000. Humayun met Sher Shah at Kannauj, with both armies mirroring each other across the Ganges river. Humayun crossed the river and began skirmishing with Sher Shah's army. Amidst the fighting, Humayun's army saw many nobles hiding their insignia to prevent them from being recognized by the Afghans, with many nobles also fleeing from the battle. The Mughal army was defeated, which led to Humayun fleeing to Sindh. Following this victory, Sher Khan was crowned a second time on the 17th of May 1540 as Sher Shah, being declared as Emperor of Northern India, while also donning the epithet of Sultan Adil, meaning 'Just King'. With the defeat and flight of Humayun, Sher Shah captured Delhi, marking the beginning of the Sur Empire.