Hariharan Pillai Happy Aanu (English translation: "Hariharan Pillai is happy") is a 2003 Malayalam film by Viswanath starring Mohanlal and Jyothirmayi. This was Viswanathan's debut film as a director and the debut music directorial venture of renowned pianist and arranger, Stephen Devassy.
Hariharan Pillai Happy Aanu was the first film made by the director