Johnnie Walker Trilha sonora (1992)

The film gets its title from Mammootty's character's role Johnnie Varghese. He has a brother Bobby Varghese who studies in Bangalore degree college for Economics. A visit from his brother and friends changes Johnnie's mind and he joins college despite of his age. From there he clashes with Swamy who rules the college with his drug gang. What happens to Johnnie and Bobby is the rest of the plot.