He took the hot seat and told Big B: "My mother wanted me to participate in KBC, and I have finally fulfilled her wish. I had to leave state civil services to handle my father's business as my dad had heart surgery. I had to take up the responsibilities over my dreams." Kaun Banega Crorepati 15 airs on Sony. Kaun Banega Crorepati 15: Amitabh Bachchan Reveals He Has Cleaned Kitchen Utensils and Bathroom Sink!.