Bollywood superstar Amitabh Bachchan will celebrate his 83rd birthday on October 11, 2025. In keeping with the tradition on 'Kaun Banega Crorepati', the iconic quiz show, which has celebrated Big B's birthday by inviting father-son duos as guests, will have legendary poet Javed Akhtar and his actor-director-singer Farhan Akhtar on the hot seat this year.