After doing 'Kahani' of Sujoy Ghosh, he has again offered Vidya Balan a film which is based on th real life of Police Officer Durga Rani Singh. But there were some conflicts, then this role went to Aishwarya Rai. Not in that film, but vidya Balan is definitely doing a role of Police officer in another film. This kind of role is for the first she will be playing in her career. Nawazuddin Siddiqui and Amitabh Bachchan is also in the film.