Silambarasan Rajendar a.k.a STR is busy shooting for his next flick Vaalu under debutant Vijay Chander’s direction. Hansika is playing the main lead and Santhanam is playing a prominent role. Sources say that producers are planning to release Vaalu audio in April and movie is anticipated to hit the screens by May. STR is also busy lending his voice as playback singer for Tamil and Telugu movies. He recently crooned a song in for a top hero in Tollywood under S.S.Thaman’s composition as well as a song in Vallinam. STR is shooting his next flick Vettai Mannan which has Hansika and Jai in the lead roles. Yuvan Shankar Raja will compose the tunes for this film and S. S. Chakravarthy is producing this flick under Nic Arts.