Please read this.
And this:
To understand the Dravidianists of today, it is absolutely essential to understand the history and mythology of the ancient Tamil country.
According to this history and mythology, in really really really ancient times (nobody has told us how ancient), the eastern, western and southern parts of today’s Kanyakumari were attached to a really really really vast tract of land known as Lemuria or Kumari Nadu or Kumari Kandam. This really really really vast tract of land was subsequently submerged in the sea. The Tamils who survived this catastrophe migrated northwards.
And then in a short period, these Tamils migrated further northwards and occupied all of Bharata, and also made as their home today’s Pakistan and Afghanistan. The language they spoke in those days has today transformed into what is known as Brahui.
Today’s Dravidianists claim that because the Aryans invaded from outside, the ancient Tamils were exterminated from the northern parts of India, and also that because the invasion was unsuccessful south of the Vindhyas, the Tamils lived in peace and prosperity in these areas.
It was 10 at night when this happened. The Tamil Professor directly went to the Vice Chancellor’s house and gave him an adverse report of what had occurred at the dinner. “You have filled the [History Endowment] Committee with only Aryans! The Aryan members have naturally selected another Aryan as the speaker. And you endorsed their selection. Now look what has happened—a direct humiliation of Tamil itself! A massive, utter humiliation!”
I later learned that the Vice Chancellor had erupted in fury, twirled his moustache and patted his biceps.
