Megastar Amitabh Bachchan and southern superstar Mohanlal have been approached to feature in two different versions of suspense thriller film, Gumnaam. Producer Jayantilal Gada confirmed, while Bachchan is being sought to star in the Hindi part, Mohanlal is in talks to feature in the south version. "We have approached them but they are yet to sign on the dotted lines. We have narrated the story to them and they both have given positive feedback. For the south version, we have Mr Mohanlal and for Hindi part, we have Mr Bachchan," Gada told PTI.

Amitabh Bachchan