'Azhagiye', the first song composed by AR Rahman for the Karthi and Aditi Rao Hydari starrer 'Kaatru Veliyidai', has been released. It has been sung by Arjun Chandy, Haricharan and Jonita Gandhi with lyrics by Karky. Written, directed and produced by Mani Ratnam, the film is scheduled to release on April 7.