Ranveer Singh's upcoming period drama 'Bajirao Mastani' is one of the most awaited film of the year. With just Ranveer and Deepika creating so much buzz, imagine what happens if Big B Amitabh Bachchan helms the Bajirao throne.Well, the filming is complete and there's no chance he features in there. So, Ranveer Singh made the superstar say a dialogue from the film.Singh recently posted a dubsmash video featuring him and Big B, where the latter says out the film's dialogue, 'Bajirao ne Mastani se mohabbat ki hai. Aiyyashi nahi!'Ranveer went on to comment on the video, 'Now this.. is Epic !!! : the Biggest 39B39 of all @amitabhbachchan BajiraoMastani''Bajirao Mastani' is slated to release on December 18, 2015.