If you are wondering if the person in question is Aishwarya Rai or Jaya Bachchan, you are mistaken. The third Bachchan in the film is none other than Asin, who plays the role of Sania Bachchan. Asin will be playing the role of Abhishek's sister in the movie.
She is paired opposite Ajay Devgn in the film. Bol Bachchan also features Prachi Desai, Krushna Abhishek and Archana Puran Singh. The film is all set to release on July 6, 2012.