|Agra (i/ˈɑːɡrə/; Hindi: आगरा Āgrā, Urdu:آگرہ), the former capital of Hindustan, is a city on the banks of the river Yamuna in the northern state of Uttar Pradesh, India. It is 363 kilometres (226 mi) west of the state capital, Lucknow, and 200 kilometres (124 mi) south of the national capital New Delhi. With a population of 1,686,976 (2010 est.), it is one of the most populous cities inUttar Pradesh and the 19th most populous in India. Agra can also refer to theadministrative district that has its headquarters in Agra city.The city is mentioned in the epicMahābhārata, where it was called Agrevaṇa("the border of the forest"). Legend ascribes the founding of the city to Raja Badal Singh, a Sikarwar Rajput king (c. 1475), whose fort, Badalgarh, stood on or near the site of the present fort. However, the 11th century Persian poet Mas'ūd Sa'd Salmān writes of a desperate assault on the fortress of Agra, then held by the ShāhīKing Jayapala, by Sultan Mahmud of Ghazni. Sultan Sikandar Lodī was the first to move his capital from Delhi to Agra in 1506. He died in 1517 and his son, Ibrāhīm Lodī, remained in power there for nine more years, finally being defeated at the Battle of Panipat in 1526. Between 1540 and 1556, Afghans, beginning with Sher Shah Suri, and Hindu King Hem Chandra Vikramaditya(also called Hemu), ruled the area. It achieved fame as the capital of the Mughal Empire from 1556 to 1658. It is a major tourist destination because of its many splendid Mughal-era buildings, most notably the Tāj Mahal, Agra Fort andFatehpūr Sikrī, all three of which areUNESCO World Heritage Sites.