Kahaani 2 Movie story revolves around Vidya Sinha(Vidya Balan) and her daughter Mini who live peacefully in the sleepy town of Chandan Nagore. Kahaani 2 Synopsis: The story revolves around Vidya Sinha(Vidya Balan) and her daughter Mini who live peacefully in the sleepy town of Chandan Nagore.ahaani had Balan play a heavily pregnant woman in search of a missing husband. Durga Rani Singh has been out, the viewers have been a bit confused about actor Vidya Balan’s role. . Featuring Vidya and Arjun Rampal in key roles, the story of Kahaani 2: Durga Rani Singh is expected to hit you hard