The results of the study that these scientists had conducted, based on genome-wide data from seventy-three population groups in the Indian subcontinent, were stunning. The study showed that between 2200 BCE and 100 CE, there was extensive admixture between the different Indian populations with the result that almost all Indians had acquired First Indian, Harappan and Steppe ancestries, though, of course, to varying degrees. The paper says, ‘India experienced a demographic transformation several thousands of years ago, from a region in which major population mixture was common to one in which
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