The Great Bharata War: http://www.indicstudies.us/Astronomy/GreatBharatawar.html

…Not many know about the history behind the Kunti Devi temple in Purana Quila, said to be built by the mother of the Pandavas

…A group of people, including students and their parents, who were taken for a walk in the fort last week by heritage activist Surekha Narain, stumbled upon the Kunti Devi Mandir by chance and were fascinated by it. Excavations in the Purana Quila have unearthed black polished ware and painted gray ware, the former dating back to 300 B.C., which strengthens the belief that the site now occupied by the fort was probably part of the Indraprastha built by Yudhistar, with its ‘fairy gates’. Coins dating back to the Gupta and pre-Gupta periods have also been unearthed.

The Imperial Guptas reigned from 319 to 495 A.D. and the fact that they had control over this area long before the Delhi Sultanate came into existence is proof that their kingdom included Delhi and the areas north of it – Punjab, Kashmir and perhaps parts of Afghanistan too. As a matter of fact, it is believed that Maharani Kunti’s sister-in-law Gandhari, wife of the head of the Kauravas, Dhritrashtra, got her name from her native place Ghanadar, as Kandahar was once known. So Kunti Devi’s temple is of some significance.

As intriguing as this temple is the Talaqi Darwaza or Forbidden Gate, which has a mural of a man fighting a lion. Why this gate was considered forbidden is not known but there were probably some secrets lying locked beyond it as it happened to be the northern gate of the fort and perhaps full of telltale ruins of the Mahabharata days and women in bondage, of which orthodox Sultans did not want their subjects to know about.