Steppe ancestry entered modern Indian Populations post 900 BCE

In this post, I analyze the date of steppe admixture with local ancestry in Swat Valley Iron age samples (avg 910 BCE) and RoopkundA (avg 850 CE) samples from Uttarakhand, India. These are the only 2 sets of good quality ancient DNA samples from the Indian subcontinent, and therefore extremely important to study the genetic changes in the subcontinent. 

 In one of my earlier posts, I analyzed all 23 RoopkundA samples and show that in that set of 13 male samples, the steppe component is not correlated with Y-HG R1a1a, instead, it is correlated with Y-hg J2. 

East, West & Basal Eurasian components in select ancient samples from the paleolithic and neolithic

I am working on some qpGraphs to figure out the different Iran farmer like ancestries in Ganj Dareh, CHG, TepeAbdulHosein, Hotu cave, Wezmeh cave, SC Asia (Sarazm) and India etc. Its taking longer than I expected because of many populations adding complexity. 

So I thought i would use the graphs already made to shed some light on some Eurasian samples. When I publish qpGraphs please keep some things in mind while analyzing.