From the archive record
Main entrance at Purana Qila is also known as Bara Darwaza which in Hindi means big gate. Purana Qila, is the oldest fort among all forts in Delhi and, the oldest known structure of any type in Delhi. It was re built by the Afghan king Sher Shah Suri, on the same site, which was perhaps the site of Indraprastha, believed to be the capital of the Pandavas, Sher Shah raised the citadel of Purana-Qal'a with an extensive city-area sprawling around it. It seems that the Purana-Qal'a was still incomplete at Sher Shah's death in 1545, and was perhaps completed by his son Islam Shah or Humayun, although it is not certain which parts were built by whom. It's located at the site of the legendary city of Indraprastha, that was founded by Pandavas on the banks of perennial river Yamuna, which is rever