Big B Amitabh Bachchan, son Abhisekh and daughter-in-law are in Hyderabad to take part in the shooting for Ram Gopal Varma’s sequel to Sarkar The actors visited Kamineni hospital and took part in the ‘Prevention of Cancer’ programme. Amitabh said that he never smoked nor chewed tobacco in his life. They are the biggest cause of cancer worldwide. Ash and Abhi were also present and spent some time with children suffering from cancer.