Big B, Amitabh Bachchan was the one who unveiled the trailer of Kahani 2 on Twitter. It raised a lot of curiosity about his role in the film.
When director, Sujoy Ghosh was asked about the role of Amitabh in the film, he gave an open-ended answer and said,
He’s there in all my films.
When needled more about the same, he said,
For that you will have to watch the film.
On the other hand, Producer Jayantilal Gada said unknowingly,
You will have to check with Sujoy, I don’t know anything about the film creatively.
Sources however reported that senior Bachchan is not a part of the film. Although, previously, he worked with Vidya and Sujoy in his last released film TE3N.