Here is what the Priya Moorjani paper (2013) says
Genetic Evidence for Recent Population Mixture in India
Priya Moorjani,1,2,6, Periyasamy Govindaraj,3 Bonnie Berger,2,4 David Reich,1,2,7 and Lalji Singh3,5,7 * Kumarasamy Thangaraj,3,6, * Nick Patterson,2 Mark Lipson,4 Po-Ru Loh,4