Sharreth was born to Vasudevan and Indiradevi. He is a protege of Carnatic music virtuoso M. Balamuralikrishna. He debuted as a film composer in 1990 through the Malayalam language film Kshanakkathu. Prior to debuting as a composer, Sharreth had a sporadic presence as a playback singer for films. His first song was 'Dum dum dum', a duet with K. S. Chithra for the Malayalam film Onningu Vannengil. He has composed musics over 45 movies and as a playback singer for more than 40 films. He also composed albums over 15.