Hey ocean_princess, the song is from movie Abhimaan
and the song is
Loote koi man ka Nagar ban ke mera saathi
Am I right? Thanks for the valuable clue!!!
Next: This hero is awaiting his heartthrobe on his Birthday, but she has not arrived yet, and hero sings this song in front of candle, and tells eveyone that he won't cut the cacke unless she arrives. The famous character in the movie was 'Nathulal', (Muchhein ho to Nathulal jaise ho warana na ho) The clue word 'Intezaar'.