Qila Rai Pithora
This fort was built by Rai Pithora, better known as Prithvi Raj Chauhan. It is roughly a rectangle in shape; the south wall crosses the road to Gurgaon, close to Adham Khan’s tomb, the north wall cuts the Delhi road near the 10th milestone from Delhi.
Half of the western wall is formed by the west wall of the inner citadel called Lal Kot, and the eastern wall cuts the Tughluqabad road about 1.5 km from the Qutub Minar. The ruins of the gates are still to be traced.