It has been claimed that the Indus Valley people spoke a dialect related to the Dravidian languages of southern India. •In this theory, invading Aryans [Āryans] from Central Asia brought an end to this civilization, and the Dravidian languages (Tamil, etc.) thus retreated tosouthern India, where they are still spoken today.•In fact, there are still some tribes of Dravidian-language speakers in Pakistan today (their language is called Brahui) , and it has been suggested that they could be descendants of the ancient Indus Valley people