Watch Amitabh Bachchan Celebrated His Birthday With KBC Screening - Bollywood News. Bollywood legend Amitabh Bachchan celebrated his 68th birthday on the sets of Kaun Banega Crorepati Season 4 and was overwhelmed with all the surprises he received. To know what all happened watch the video! Visit us at http://www.rajshri.com/Listing/Trailers-and-Trivia/Free-Hindi-Trailers-Trivia-New-Bollywood-Promos-Clips-First-Look for the latest bollywood film reviews, makings & trailers.