Prehistory
See also: Prehistoric India, Prehistoric_Tamil_Nadu#Pre-historic_period, History_of_Karnataka#Pre-history, History_of_Andhra_Pradesh#Introduction, and Pre-history of KeralaSouth India remains is in the Mesolithic until 2500 BC. Microlith production is attested for the period 6000 to 3000 BC. The Neolithic period lasts from 2500 BC to 1000 BC, followed by the Iron Age, characterized by megalithic burials. Comparative excavations carried out in Adichanallur in Thirunelveli district and in Northern India have provided evidence of a southward migration of the Megalithic culture.
Early epigraphic evidence begins to appear from about the 5th century BC, in the form of Tamil-Brahmi inscriptions, reflecting the southward spread of Buddhism.
Read more about this topic: History Of South India