P. Unnikrishnan (born 9 July 1964) is a Carnatic vocalist and a national award winning playback singer. Unnikrishnan was born to K. Radhakrishnan and Dr. Harini Radhakrishnan in Palakkad, Kerala. The family home, Kesari Kuteeram, was a well known landmark of Madras city. He went to Asan Memorial Senior Secondary School, Chennai, in 1983. He graduated from Ramakrishna Mission Vivekananda College, Chennai, and received his B.Com degree from the Madras University. He earned a General Law and Post Graduate Diploma in Personnel Management and Industrial Relations. Unnikrishnan was initiated into Carnatic Music at age of 12 by Seshadri, Unnikrishnan. He was inspired by Sangita Kalanidhi Dr. S. Ramanathan. He is a national award winning playback singer for his debut film song ""Ennavale Adi Ennavale"". The song was composed by A. R. Rahman, with whom Unni Krishnan gave most of his memorable songs. Sung by Unni Krishnan Lyricist - Subramaniya Bharathiyaar Composer - K.S.Raghunathan