Sikandar Lodi (born Nizam Khan), the second son of Bahlul, succeeded him after his death on 17 July 1489 and took up the title Sikandar Shah. He founded Agra in 1504 and built mosques. He shifted the capital from Delhi to Agra. He abolished corn duties and patronized trade and commerce. He was a poet of repute, composing under the pen-name of Gulruk. He was also patron of learning and ordered Sanskrit work in medicine to be translated into Persian. He curbed the individualistic tendencies of his Pashtun nobles and compelled them to submit their accounts to state audit. He was, thus, able to infuse vigor and discipline in the administration. His greatest achievement was the conquest and annexation of Bihar. In 1501, he captured Dholpur, a dependency of Gwalior, whose ruler Vinayaka-deva fled to Gwalior. In 1504, Sikandar Lodi resumed his war against the Tomaras. First, he captured the Mandrayal fort, located to the east of Gwalior. He ransacked the area around Mandrayal, but many of his soldiers lost their lives in a subsequent epidemic outbreak, forcing him to return to Delhi. Sikandar Lodi's tried to conquer Gwalior fort for five times remained unfulfilled as each time he was defeated by Raja Man Singh I.