Radha, the daughter of blacksmith, Narayanan, falls in love with Unnikrishnan, the new postman in town. Their love is however opposed by the evil moneylender, Kaalimuthu.Radha, the daughter of blacksmith, Narayanan, falls in love with Unnikrishnan, the new postman in town. Their love is however opposed by the evil moneylender, Kaalimuthu.Radha, the daughter of blacksmith, Narayanan, falls in love with Unnikrishnan, the new postman in town. Their love is however opposed by the evil moneylender, Kaalimuthu.