The entire star cast of Taarak Mehta Ka Ooltah Chashmah came as special guests for the shaandaar Shukravaar episode on Kaun Banega Crorepati 13. Host Amitabh Bachchan welcomed everyone warmly and Popatlal aka Shyamlal Pathak and Producer Asit Kumar Modi were the first ones to sit on the hot seat to play the game.
