Mumbai He may have worked with actor Paresh Rawal in most of his films, but filmmaker Priyadarshan insists he doesnt believe in favouritism. The director says the casting of his films is done on the basis of the script. "I do not believe in favouritism. The actors are cast according to the script once it is complete. That is the way I always function," said Priyadarshan.Priyadarshan is currently busy working on Kamaal Dhamaal Malamaal, starring Nana Patekar, Om Puri, Shreyas Talpade, Asrani, Shakti Kapoor and Paresh Rawal.