 "Indigenists" follow a "Puranic agenda", emphasizing that these lists go back to the fourth millennium BCE.Megasthenes, the Greek ambassador to the Maurya court at Patna at  300 BCE, reported to have heard of a traditional list of 153 kings that covered 6042 years, beyond the traditional beginning of the Kaliyuga in 3102 BCE.The royal lists are based on Sūta bardic traditions, and are derived from lists which were orally transmitted and constantly reshaped.