Excavations in search of the lost city have been carried out on this site since the 1950s... prompted when researchers found a link between Purana Qila and one of India's most important texts, the Mahabharata. This epic poem, about 100,000 verses long, is believed to have been written more than 2,400 years ago. It is hotly debated which parts of the text are based on fact and which elements are fictional. But it is considered to offer many reliable insights into this period of Indian history, including details on the city of Indraprastha and clues to its possible location. Mahabharata...