Never assume that the Dravidians came from somewhere. They were already there when the Aryans came. Also, the Tamil Bible teaches that the Aryans conquered the Hindus. So if that's true, then the Tamil sages and the other Tamil tribes and the other Dravidian tribes probably migrated from Asia to Africa or Europe.
Yesterday I was surfing the net for some information on inguinal hernia in children, I got into this whole theory of Aryan supremacy. Then I couldnt resist the urge to read the Tamizh press and most intresting thing is what Madan has stated is that there was no power for the peoples of India, then we can not have one Caste based society like Tamil Nadu, If the power were to be given to a people they would not have remained so divided. On the contrary the Aryan people had suffered a lot of problems and got displaced because they got outsmarted by the other people of India by the time they reached north India. There fore they had to settle in South.Now isnt it we have reached a stage of Economic well being where we dont need slaves any more and freed our slaves. Now this theory is preposterous for the future course of events. I hope I have demolished it once for all.
Let me tell u how the whole thing began. In the late 90s Indian books were exported in large quantities to US. One of the name of the book was considered as the encyclopaedia of indian astronomy. The most popular book that I was introduced to. I brought up my nephew and asked him what was he reading. He did a quick google and came up with a site with almost all the important vernacular words that make up tamizh. Then he says that it is tamil. When I was frustrated I looked at him and smiled. He had brought me to my senses. I was a tamizh speaker but was not aware of the fact that I was speaking tamil. So at that moment I already knew I was speaking tamizh. Although I have studies tamizh in school, but it took me a few months to convince myself that this is tamizh and not marathi. I never doubt my tamizh again. I have been reading tamizh since that time. Recently I was looking at some old email of my peers. One of the friend wrote to me that he had found a language that is called tamizh in the internet. He sent me the URL. I went to the website and there were books with tamizh. I was in utter disbelief for the first time in my life. From that moment I knew that I was speaking tamizh and not marathi. On that day I have become a believer in tamizh..