If Aryans & Dravidians are the same Stock, then Why North Indians look Fair & Handsome and South Indians look Black as a Char coal. Do you mean to say that they both are same ???
Enough of DNA use your Common Sense Sri Ram
1) Caste System in Hindus is founded by Muslim Invaders & British 2) There is nothing called Aryan & Dravidian: 3) Indians have Never Invaded any Country 4)