Ace bollywood actress Vidya Balan has been roped in by bollywood director Ekta Kapoor for a biopic flick that will be based on the story of Silk Smitha.The flick will be titled 'The Diry Picture'. The flick will be directed by Milan Luthria.Ajay Devagan will play the role of 'thaadikarar', the real life hero of Silk Smitha. The first photo shoot of the flick was held last week and the pictures have come as a perfect reply for those industry peers who wondered how Vidya would handle the complicated role.