India, Sept. 30 -- Amitabh slipped and injured his knee while shooting, the actor revealed during the latest episode of Kaun Banega Crorepati 18. The veteran actor, who usually delivers his iconic opening monologue while standing at the centre of the stage, chose to sit this time because of the injury.

On the show, the actor entered running towards his seat and chose to quickly sit down. Amitabh explained, "Usually, I do my monologue standing at the centre, but today, I have a knee injury. Yesterday, during the shoot, I slipped and fell and injured my knee."

The actor pointed towards his left knee while talking about the injury, leaving the audience worried as they gasped. However, Amitabh was quick to reassure them that the injury was ...