A RECENT paper on a genome wide study of the South Asian population (A genetic chronology for the Indian Subcontinent points to heavily sex-biased dispersals: BMC Evolutionary Biology, March 2017) strikingly confirms the work of historians, archaeologists and historical linguists. Data shows that there were indeed significant migrations from Eurasian steppes into South Asia, starting from 3,500 years ago. The South Asian population – current Indian, Pakistani, Bangladeshi, Nepalese, and Sri Lankan population – have a significant central Asian component in their genetic make-up.