Zindagi hai khafa khafa

Hello world !!!
Just listened to a song on radio....
I dunno which movie or who the singers are...
But its quite a lovely duet ...
It goes something like ...
Zindagi hai khafa khafa ...
aur tum dil lagaane ki baat karte ho ...
Waqt hai tamha tamha ...
Aur tum muskaraane ki baat karte ho ...
Will appreciate if - Anybody can tell me name of movie.
Long time since i liked a song.
Have Fun folks !!!
Cheers !!!