Ancestry of Kashmiris, are the Muslims really all Brahmins?

For the longest time, the genetics of Kashmiris has been somewhat of a mystery. A large chunk of the Muslim population of the valley has claimed to be of Brahmin origin, and the internal caste differentiations of the Muslims such as Bat, Dar, Ganai, Chaupan, Sheikh, Syed, Wani etc have somewhat disappeared from public eye.

The 1931 Census provides us som…