Nayantara, who started her career with Malayalam films, is returning to her roots again after a gap of three years. The pretty actress is the reigning queen in both Kollywood and Tollywood. Nayantara will appear opposite Prithviraj in Twenty:20 directed by popular Malayalam director Joshi, being made to raise revenue for the Malayalam Actors' Federation. All prominent Malayalam actors, including superstars Mohanal, Mammootty, Suresh Gopi, Dileep, Jayaram and others are acting in this movie for free. Nayan, who is riding the success wave after her show-stopping glam makeover in Billa, had agreed to act in this film only because of its noble cause. Recently, she shot a song sequence for the film with Prithviraj in Chennai for four days under choreographer Brinda’s supervision.