A geologist, Suvrat Kher, has a very good post on the recent paper on Indian genetics. He concludes:
The Indian Press has made a hash of the finding. For example they have only reported those parts of the study that deal with the kinship among Indians and have stressed that castes and tribes cannot be differentiated or that there is no divide between the Aryans (roughly north Indians) and Dravidians (south Indians). That is all true for average relatedness. But the study also clearly points out that there are genetic differences between north and south Indians and between upper and lower caste in terms of the degree of relatedness to Eurasians. North Indians and upper castes are more closely related to Eurasians. North Indian upper castes have even more Eurasian ancestry. This part was ignored by the press. But I can't blame the press entirely. The scientists who gave interviews ...
