<P> Purana Qila is certainly an ancient settlement but archaeological studies performed there since the 1950s have failed to reveal structures and artefacts that would confirm the architectural grandeur and rich lives in the period that the Mahabharata describes . The historian Upinder Singh notes that despite academic debate, "Ultimately, there is no way of conclusively proving or disproving whether the Pandavas or Kauravas ever lived ...". However, it is possible that the main part of the ancient city has not been reached by excavations so far, but rather falls under the unexcavated area extending directly to the south of Purana Qila . </P> <P> Indraprastha is not only known from the Mahabharata . It is also mentioned as "Indapatta" or "Indapattana" in Pali - language Buddhist texts, where it is described as the capital of the Kuru Kingdom, situated on the Yamuna River . The Buddhist literature also mentions Hatthinipura (Hastinapura) and several smaller towns and villages of the Kuru kingdom . Indraprastha may have been known to the Greco - Roman world as well: it is thought to be mentioned in Ptolemy's Geography dating from the 2nd century CE as the city "Indabara", possibly derived from the Prakrit form "Indabatta", and which was probably in the vicinity of Delhi . Indraprastha is also named as a pratigana (district) of the Delhi region in a Sanskrit inscription dated to 1327 CE, discovered in Raisina area of New Delhi . </P> <P> D.C. Sircar, an epigraphist, believed Indraprastha was a significant city in the Mauryan period, based on analysis of a stone carving found in the Delhi area at Sriniwaspuri which records the reign of the Mauryan emperor Ashoka . Singh has cast doubt on this interpretation because the inscription does not actually refer to Indraprastha and although "...a place of importance must certainly have been located in the vicinity of the rock edict, exactly which one it was and what it was known as, is uncertain ." Similarly, remains, such as an iron pillar, that have been associated with Ashoka are not indubitably so: their composition is atypical and the inscriptions are vague . </P> <P> As of 2014, the Archaeological Survey of India is continuing excavation in Purana Qila . </P>

Who built the palace of pandavas at indraprastha