A comprehensive paleogenomic study published in Nature Heritage has analyzed the DNA of 6,000-year-old remains found in the Narmada Basin. The results indicate a surprising genetic continuity between ancient Indian hunter-gatherers and early African maritime voyagers who crossed the Indian Ocean via the Bab-el-Mandeb strait. This suggests a much earlier and more frequent interaction between the two continents than land-based migration models allow.
The study also highlights unique genetic markers for high immunity to tropical diseases, which were passed down to modern tribal populations in the region. This research provides a crucial link in the story of human migration and the deep genetic roots of the Sanatan heritage in the Indian heartland.