Well humanity is one big family. I am not surprised at finding genetic connections between my homeland, South India, Kashmir, Azerbaijan, Iran, Syria, and Iraq. It is well known that IVC was a highly developed civilization with wide spread contacts. Moreover, according to the theory of diffusion of agriculture from Syria to lands East-ward, it is not too difficult to understand the genetic link. Very early settled culture was probably highly tribal, and if one can imagine a clan shifting Eastwards, then much of this spread becomes understandable. After all the oldest archeological site with evidence of agriculture in Pakistan is Mehrgarh just adjacent to the mountains of baluchistan and at Western-most point of plain that leads up to the Indus and beyond.
Conversely, it could be a consequence of long term trading contacts between IVC and Mesopotamia.
I have also noted with interest the bickering about racial origins, African features, etc... It is so pointless that it is laughable. Point to ponder is that according to recent scientific analysis, while Homo Sapiens originated in Africa, almost everybody in the human family has some traces of Neanderthal DNA from the time when Homo Sapiens shared territory with them in Levant (most likely Palestine / Syria) more than 25000 years ago. Specifically this DNA is the type passed from the Mother to offsprings, meaning that some of humanity's forefathers were Neanderthals. Now how is that for notions of racial purity and superiority? There is some Denisovan DNA too, but I think I have made my point.