you fool,there is no separate human sect like Dravidian OR Aryan,all of us living in India is same-tribe, there is no Dravidian Race in world history okay?, but Tamil Separatist from british / Christian influenced historians written about Dravidians & Aryans. To be frank there was no separate race, All migrated from Centrol Asia, one while searching for safe place to live, one group cross sahyadri hills and came towards south india like- Karnatak,TN,AP,Keral.and others were stayed near to Indus & then scattered towords north india.THESE IS NO EVIDENCE FOR DRAVIDIAN RACE, BUT your friend Karunanidhi Has eveidence for Political benifit. but there is cultural and language differences like- Kannada, tamil, maleyalam,telugu. IF YOU CONSIDER THESE 4LANGUAGES ARE DRAVIDIAN, THEN TELL ME the roots of OTHER INDIAN LANGUAGE LIKE- Oriya, bengali, manipuri, assami etc ???