Large cities such as Mohenjo-daro and Harappa have been excavated in the northwestern part of India, dating to 5000 years ago, with the best Dravidian civilization. Evidence of civilization has been unearthed from them and has been well tested by the best researchers: the Indus Valley Civilization is a Dravidian civilization that, by and large, has become extinct. About 4500 years ago, a picture was written in the Atlas book explaining that the whole of India was Dravidian.
