Mani Rathnam and AR Rahman are trying out new ideas to popularise upcoming Tamil film “Kadal” music which is dubbed in Telugu as “Kadali”. It is known that 1st song of this film which was first played on MTV became a sensational hit and made “Kadali” music a brand. Now another song from the “Kadali” album which was written by Karky and tuned by Rahman is going to go on air on December 10th. According to insiders reports this song can further boost the album. Meanwhile Madras Talkies has made it clear that “Kadali” audio by Sony Music will be launched officially on December 17th. A Mani Rathnam film normally does not have an audio launch and it will be straight to the stores. This film debut of Kollywood star Karthik’s son Gautham Karthi and Tulasi who is the younger daughter of Radha.