Ok Kanmani (2015) is a 2015 Indian Tamil film released on Apr 20, 2015. The film is directed by Mani Ratnam, produced by Mani Ratnam , music composed by AR Rahman.Madras Talkies presents O Kadhal Kanmani's First Official Trailer! In theatres April 2015. Check out this page for more updates on Ok Kanmani (2015).