Watch on HDtoday. Mangala Vaathiyam is a 1979 Indian Tamil-language film, directed by K. Shankar and produced by Gopikrishnan son of M. S. Viswanathan. The film stars Kamal Haasan, Sripriya, Y. G. Mahendran and Nagesh in lead roles. The film had musical score by M. S. Viswanathan.