A couple of interesting things about this song, which is themed around the Holi festival. For one, the music is by Shivkumar Sharma and Hariprasad Chaurasia, who I know better as classical musicians. I've reviewed at least one of Chaurasia's albums for XDU and we saw Sharma last spring in concert at Duke. I had no idea they had an ongoing career writing music for Bollywood films. The other notable thing is that, at least according to IMDB, Amitabh does his own singing in this number. That's pretty uncommon, as I understand it. Almost all songs in Bollywood are done by playback singers like Lata Mangeshkar or Mohammed Rafi.