Although “Madraspatnam” emerged as a new political entity, some of the towns and villages encased by its limits had genealogies extending into the Greco-Roman period, and other had monuments to authenticate claims of Pallava (650-1100) and Chola (850-1350) rule .
The Puranas are post- Vedic texts which typically contain a complete narrative of the history of the Universe from creation to destruction, genealogies of the kings, heroes and demigods, and descriptions of Hindu cosmology and geography. There are 18 canonical Puranas, divided into three categories, each named after a deity: Brahma , Vishnu and Shiva . There are also many other works termed Purana, known as 'Upapuranas.
The 18 Mahapuranas (great Puranas), as the origins of the Puranas, may have overlapped to some extent with the Vedas , but their composition stretched forward into the 4th-5th centuries,... the earliest parts of the Puranic genealogies are either entirely or partly w:Mythicalmythical. The oldest of the Puranas are the Matsya, Vayu and the Brahmanda and for our purposes, the Vishnu Purana, somewhat later than the first three ... the Vedic link also goes back to the earlier statement that the itihasa-purana was the fifth Veda.