Kahaani is a 2012 Indian Hindi mystery thriller film directed and co-produced by Sujoy Ghosh. It stars Vidya Balan as Vidya Bagchi, a pregnant woman searching for her missing husband in Kolkata during the festival of Durga Puja, assisted by Satyoki "Rana" Sinha (Parambrata Chatterjee) and Khan (Nawazuddin Siddiqui). Made on a shoestring budget of…