Of course, in a Harappan site we would not expect W. Central Asian (Indo-Aryan) DNA, as the recent paper by Vagheesh et al. indicated: the *speakers* of Indo-Aryan entered the subcontinent only in the LATE Bronze Age: as evidence from Swat indicates.
For a nationalist/Hindutva person that does not matter, of course, as they wrongly maintain that the Harappan population was “Aryan” anyhow.
Problem solved, LOL.”
The presence of these four races is absolutely not in sync with present day dwellers. How they reached this part of Tamilnadu from the presently known regions of these races might give a new migratory route. Instead if we link them with the language we speak, is it scientifically tenable to make a conclusion something like – that they brought Tamil to present-day Tamilnadu?
This is proof enough that the central Asians who were supposed to have entered the IVC in the 2nd millennium BCE, had learnt the use of rice in the Yajna - assuming they developed the concept of Yajna by themselves – from the native, indigenous people of the IVC. A rational interpretation would however treat the central Asians as learning the very technique of Yajna from the natives and not as developing a Yajna all in a sudden by themselves and making the native rice as integral to the Yajna.