Based on the Puranic king-lists, if we work backwards from Candragupta Maurya for 138 terms we have Manu, the founding father. If we give 18 years to each term, Manu will be 2484 years before Candragupta. We know from the Greek sources that Candragupta came to power around 320 BCE. Therefore, the first kings of the Puranic tradition belonged to 2800 BCE or earlier.
