Speaking about his 'Taarak Mehta Ka Ooltah Chashmah' co-star, Amit Bhatt aka 'Champak Chachaji', actor Dilip Joshi said that he is very different in real life. He added that on the show he's known to be a strict father but in real life, he's the most mischievous person. Dilip further said that he and Amit have also done theatre together.