For those unaware, Rahman has recentely said that Ranjha Ranjha song is going to be different version in the movie. Apparently the movie version has Ila Arun and Richa Sharma singing the song.
A. R. Rahman: “‘Ranjha Ranjha’ is an idea that I had done earlier but gave it a skip. It’s poetry of Baba Bulleshah. Though the song that you hear in the album (sung by Rekha Bhardwaj, Javed Ali and Anuradha Sriram) doesn’t feature in the movie, we have created another version of the song that is sung by Ila Arun and Richa Sharma which would be featured in the film. This version has been shot beautifully and works better for the film.”