Big Dilemma: How to tell a Paki from Indian in NY?

Paks are posing off as Indians to avoid discrimming in America.  So how to tell?  Pull them pants down in Times Square?  Naah, then that would also give away Shah Rukh, Salman, Saif, Fardeen, Farhan, Aamir, Imran-just about all the bufoons in Bollywood. (Shahid Kapoor, the long-awaited truth on him would dangle out!!)  Men are the low-hanging fruit. Women in veils are easy giveaways!  Another option = ID check?  Hmm, that would lump all of them from both sides of the border.  Americans won't argue with that.  Would it bother them Hindus?