Pachai Theevu, dominated by a mighty king (Narasimha Raju). His son and prince Jagathalapradhapan (Raja) is a valourous youth who units out on a mission to seize pirates within the sea. He lands at Sangu Theevu, the place the top of the ocean pirates Alai Kallan lives. Jagathalapradhapan comes throughout Mohini (Namitha), who belong to the native fishermen neighborhood within the island. Romance blossom between them. Jagathalapradhapan manages to nab Alai Kallan and decides to return to his nation. He guarantees Mohini that he would convey his dad and mom to rearrange for his or her wedding ceremony. Nonetheless the King and his spouse Mangayarkarasi (Yuvarani) arranges for his or her son's marriage with a princess Azhagu Nachiyar (Nila). Jagathalapradhapan tries exhausting to persuade his dad and mom that he would marry solely Mohini. To place an finish to the issue, the king and his spouse hatch a conspiracy and bump off Mohini.
