The Chunar Fort (also known as Chandrakanta Chunargarh and Charanadri) is located in Mirzapur district of Uttar Pradesh, in India. Along with Chunar town, situated below the fort, the two are historic places with common history and legends. When Emperor Humayun attacked the fort and held it in siege for four months, he had proposed to Sher Khan that he would not claim Chunar and Jaunpur and any other place of his choice, provided he gave up Bengal, which Sher Khan had won. Humayun also demanded from Suri the surrender of his treasure which he had taken to Bengal, and also to agree to be under the protection of the Mughal Empire. He finally succumbed to pressure and signed a deal with Humayun. However, Sher Khan recaptured it when he Humayun marched towards Bengal. After Sher Shah's death in 1545 it remained under his son Islam Shah until The fort came under the control of the Mughals in Later on in the 18 th century, the British took control over the fort.