QUILA RAI PITHORA

The Chauhan prince of Sakambhari, Vigraharaja IV captured Delhi from the Tomar Rajputs in the latter half of the 12th century. The grandson of Vigraharaja IV, Prithviraja Chauhan III, built Qila Rai Pithora, the first city of Delhi, by extending the citadel of Lal Kot, and constructing huge ramparts and moats around it. The city derived its name from the title of Prithviraja Chauhan and thus came to be known as Qila Rai Pithora, with Lal Kot as its southwestern base.