Copy of a copy

I heard a snippet of this song in the movie "East is East" and it's taken years for me to figure out where it came from.  In "East is East", Archie Panjabi is lip syncing the song and dancing in her backyard.  In the original film "Pakeezah", the star Meena Kumari is also lip syncing- the voice is that of playback legend Lata Mangeshkar- and the dance is actually performed by a double because Kumari was ill.