Aryan Paternity of Tamil Dravidians; 1) R1A is the Steppe Aryan Paternity , 65% in Russians, 68% in UP Brahmins; 2) Vadama Iyer = 48%, 3) Brahacharanam Iyer = 33% / 1
No Aryan armies ever entered TN, only source of R1A , is Tam-B males,
And only 1/2 to 1/3 of even Tam-B males have R1A ;
So If a Dravidian Caste shows 10% R1A, it means their Tam-B paternity is 20-30% / 2