The Vedic and Puranic genealogies indicate a greater antiquity of the Vedic culture. The Puranas themselves state that these lists are incomplete. But the accuracy of these lists is disputed. In Arrian's Indica, Megasthenes is quoted as stating that the Indians counted from Shiva (Dionysos) to Chandragupta Maurya (Sandracottus) "a hundred and fifty-three kings over six thousand and forty-three years. The Brhadaranyaka Upanishad (4.6.), ca. 8th century BCE, mentions 57 links in the Guru-Parampara ("succession of teachers"). This would mean that this Guru-Parampara would go back about 1400 years, although the accuracy of this list is disputed . The list of kings in Kalhana's Rajatarangini goes back to the 19th century BCE.
