Kollywood actress Shruthi Hassan has crooned a song for Arulnidhi's upcoming flick, 'Udhayan'.The song was scored by Manikanth, son of Saxophone exponent Kadri Gopalnath."Shruthi's voice perfectly sat on the tune and everyone was happy about the output,", sources close to the Udhayan team said. Udhayan is directed by Chaplin and is produced by Prabhakaran on Muthamizh Padaippagam banner. The flick is expected to hit the screens by end of April.