Chachi 420, Kamal Hasan movie was my favorite movie but when i watch Hollywood movie Mrs Doubtfire i couldn't stop laughing because Mrs doubtfire is really fantastic movie and Chachi 420 is worst remake of that movie. You can also watch the movie. Bollywood big chapa factory
Actually Maira piya ghar aya is an old qawwali. It was sung by others before Nusrat Fateh Ali sang it. Also, Jugni , I think , has been sung by many singers.