Kollywood actor Silambarasan has finally slected his female lead for the flick 'Vaanam'. Tollywood actress Sneha Ullal will be Vaanam heroine. Sneha who began her career in bollywood later shifted to tollywood flicks. Her latest flick in tollywood is Simha in which she stars with Balakrishna. The shooting of Vaanam, which will be directed by Linguswamy will be launched on July 24 in chennai. The flick will also have an item number by Anushka, who was earlier expected to don the female lead.