From the DVD commentary for ‘Inside Man‘ – an approximate reproduction.
The song you’re hearing ‘Changa Changa’ [sic] is a song from a Bollywood musical ‘Dil Se’. I am a Professor at the NYU Grad Film School and one class we were talking about musicals and there was an Indian woman, who was a student of mine, and she said – Do you know anything about Bollywood films, and I said No. I said, suggest some.
So next class, she gave me the DVD of this film ‘Dil Se’. I liked the film very much, but I loved the song ‘Changa Changa’, and I made a mental note to myself that somehow I would try to put this song in the movie. So we had the original song, but Terrence Blanchard, long time collaborator and music composer, wrote an orchestral arrangement behind it. And for the end credits, we had the rap by MC Panjabi.