Roja revolves around one Man's love for his motherland and a wife's unfailing love for her husband. Roja (Madhoo) is a village girl, born and brought up in Sundarapandianpuram in Tirunelveli district in Southern Tamil Nadu. She prays that the handsome suitor and top cryptologist Rishi Kumar (Arvind Swamy), arriving in the village soon, accepts a proposal to get married to her sister.
It soon emerges that Roja's sister is in love with another, and to everyone's surprise Rishi requests Roja's hand in marriage. Being unaware of her sister's love affair, Roja is not will...