Amitabh Bachchan was promoting his upcoming film `Bhoothnath Returns` on the show `Taarak Mehta Ka Oolta Chashmah`. Big B took on the mantle of playing the host instead of the actor Shailesh Lodha, who plays Taarak Mehta on the show. Amitabh also went on to compliment actor Dilip Joshi`s character Jethalal`s moustache on the show! Watch the video to know the full story!