Remains of the fort walls are scattered across South Delhi, visible in present Saket, Mehrauli around Qutb complex, Sanjay Van, Kishangarh and Vasant Kunj areas.

The region was in ruins when he ascended the throne in the 11th century, it was he who built Lal Kot fort (Qila Rai Pithora) and Anangtal Baoli.

The Tomar rule over the region is attested by multiple inscriptions and coins, and their ancestry can be traced to the Pandavas (of the Mahabharata)" said BR Mani, former joint director-general of the Archaeological Survey of India (ASI).

[9] Alexander Cunningham's classified the site into older ("Lal Kot") and newer ("Qila Rai Pithora") parts attributed to the Tomaras and the Chahamanas respectively, but later archaeological excavations have cast doubt on this classification.

B. R. Mani (1997) referred to the site as "Lal Kot", using the term "Qila Rai Pithora" to describe a fortification wall possibly built by the Chahamanas.

Qila Rai Pithora, which was twice as large as the older citadel, had more massive and higher walls, and the combined fort extended to six and a half km.