Ulagam Pirandhadhu Enakkaga(1990)

Original title: உலகம் பிறந்தது எனக்காக

Raja is a rich person who returns from America to India. He gets surprised when most of them call him with different name and later he sees another look alike , Quarter Govindan, jobless guy and wanted to earn money for his Sister's life. Raja requests another Govindan to pretend like him, so that he will be able to find his enemies.