I got HI visa from us i was staying in us ...i came to inida for stamping in nov-10?

till today may -11 i have not got visa stamped . i m not able to understad they dealy ..have enquired 2 times but not able to get proper responce ..not able to understand why dealy as US has already give visa and hee in india just need to be stamped ..are there any policy changes i m stuck in inda has anybody got any news for the dealy plz mail me childking127@yahoo.com