Amitabh Bachchan is back on the sets of Kaun Banega Crorepati 18, with a new promo capturing his cheerful return. The megastar also thanked fans for their prayers and affection as fresh episodes prepare to air from November 16. Bollywood megastar Amitabh Bachchan is back on the sets of Kaun Banega Crorepati 18 after a brief break from the show.