Abbas Tyrewala, who penned dialogues for 'Munna Bhai M.B.B.S', revealed in a chat with 'Cyrus Says' that Shah Rukh Khan and Makrand Deshpande had signed on to play Munna and Circuit in the film. He also shared that Circuit was called Khujli at that time. However, the name of the character was changed to Circuit on Arshad Warsi's recommendation.