"Amitabh Bachchan has been contacted. Discussions are on," said ace ad film maker and director of the film N A Shrikumar Menon.
"He is the most eligible actor for the role," Shrikumar told PTI adding the actor was yet to confirm the role. Malayalam actor Mohanlal has been cast as 'Bhima', the lead character in the film. "We are going to get an ensemble cast from different languages," Shrikumar said.
Shrikumar said the film will be in two parts with a budget of Rs 700 crore-Rs 800 crore, thus making it the most expensive film to be made.
It will be shot in Hindi, Malayalam, Tamil, Telugu and English and dubbed in all Indian languages and some foreign languages.
Several academy award winning technicians will also be roped in for the film, shooting for which will begin by 2018 end.