Its a pakistani song I cant remember the name of the film. I know that reema is in it though along with saima and i cant remember anyone else.
The song goes-JAB TAK HAI MERE DUM MEIN DUM KABHI JUDA NA HON GE HUM, CHUPPE HO MERI AANKHON MEIN BASSE HO MERI SANSON MEIN.