Bappi Lahiri sung the title track for Mani Ratnam's forthcoming film 'Guru'. A R Rehman invited him to sign it. Gulzar writes the song. Bappi has just returned from Chennai after recording the song. He shares his experience and informs, "Rehman was sure about what he wanted from me. The recording was over in just one night. It is a 7 minute song, and they are going to use it in the credit scroll, with graphics."