Abhishek Bachchan has spoken about replacing Saswata Chatterjee in his upcoming movie Bob Biswas. Saswata played the character in Sujoy Ghosh's Kahaani.

https://www.thequint.com/entertainment/celebrities/abhishek-bachchan-on-how-bob-biswas-is-different-from-saswatas-character-kahaani

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