The pre-production for Deepika Padukone, Prabhas and Amitabh Bachchan's film has already begun, as confirmed by the film's director Nag Ashwin.from Top Movies News- News18.com https://www.news18.com/news/movies/pre-production-for-deepika-padukone-prabhas-and-amitabh-bachchans-film-begins-confirms-director-3482879.html