Delhi is said to be one of the oldest existing cities in the world, along with Damascus and Varanasi. Legend estimates it to be over 5,000 years old. Over the millennia, Delhi is said to have been built and destroyed 11 times. The oldest alleged incarnation of the city shows up in the Indian mythological epic Mahabharata as Indraprastha. The earliest historically recognized version of the city is Qila Rai Pithora.
This dates back to the 10th century A.D. as per available historical records. Also known as Rai Pithora, this city was the capital during the reign of Prithviraj Chauhan, the local hero famous for his first defeating, before finally losing to, the marauding invaders from central Asia (Muhammad Ghori in particular). Chauhan’s ancestors are said to have captured the city from the Tomar Rajputs who were credited with founding Delhi. Anangpal, a Tomar ruler possibly created the first known regular fort here called ‘Lal Kot’, which was taken over by Prithviraj and the city extended. Some of the ruins of the fort ramparts are still visible around Qutab Minar and Mehrauli.