Topic summary
Dravidians

Extracted from the Wikipedia article Dravidian peoples.
Origins
Although in modern times speakers of various Dravidian languages have mainly occupied the southern portion of India, Dravidian speakers must have been widespread throughout the Indian subcontinent before the Indo-Aryan migration into the subcontinent. According to Horen Tudu, "many academic researchers have attempted to connect the Dravidians with the remnants of the great Indus Valley civilisation, located in Northwestern India... but [i]t is mere speculation that the Dravidians are the ensuing post–Indus Valley settlement of refugees into South and Central India." The most noteworthy scholar making such claims is Asko Parpola, who did extensive research on the IVC-scripts. The Brahui population of Balochistan in Pakistan has been taken by some as the linguistic equivalent of a relict population, perhaps indicating that Dravidian languages were formerly much more widespread and were supplanted by the incoming Indo-Aryan languages.