Sources say that Oscar winning music director AR Rahman has recorded a song for Kochadaiyaan. Singer Karthik has rendered this song, which has been penned by veteran lyricist Vaali. Kochadaiyaan is fast progressing with director Soundarya Rajinikanth making all the arrangements for the shooting to begin. The film stars Rajinikanth in the lead role with Deepika Padukone playing the female lead. Sarath Kumar, Aadhi, Nasser, Jackie Shroff and others are playing important roles in the film.