Director: B.R. Panthulu; Producer: B.R. Panthulu; Cinematographer: V. Ramamurthy; Editor: R. Devarajan; Cast: M.G. Ramachandran, Jayalalitha Jayaram, M.N. Nambiar, L. Vijayalakshmi, Manorama, Ramadasu, Nagesh Babu, Rajamma, B.R. Panthulu, Madhavi Krishnan
Summary: Manibadrudu (M. G. Ramachandran), is a doctor with his sidekick Jalaga (Nagesh). He helps cure the illness of one of the rebels against the dictator (Manohar) of Neidhal Naadu. The ruler's guards arrest the rebels, along with Manibadrudu for helping them. Manibadrudu and the rebels are sold as slaves by the ruler to the nearby island called Kanchana Deevi, ruled by Narapathi. Manibadrudu leads the slaves, and fights for their rights.
Mohini (Jayalalithaa), the princess of Kanchana Deevi and niece of Narapathi who is the guardian of the orphaned princess, falls in love with Manibadrudu at first sight. Simultaneously, her servant Thenmozhi (Madhavi Krishnan) falls for Jalaga, after initial arguments. Despite the differences between Mohini and Manibadrudu, Mohini tries to woo him on many occasions. She even offers freedom from slavery only to him, who rejects the offer demanding freedom for all of the slaves. Meanwhile, the island is attacked by pirates headed by a leader (M. N. Nambiar). As Narapathi's troops are out of the island on another assignment, Narapathi pleads with Manibadrudu and the other slaves to help him. Manibadrudu demands freedom slavery in return for fighting the pirates, only to be betrayed later.
The slaves make an escape plan of their own and successfully take over the pirate ship, with whom they fought earlier. Manibadrudu explains to the pirate captain/leader, about their plight and asks him to help them reach Neidhal Naadu. The captain, apparently agrees, while actually taking them to his pirate island and holds them captive. He coerces them to work for him as pirates or Manibadrudu will see all of his other men die before him. With no option in place, Manibadrudu agrees to work as a pirate to escape the situation. In one of his pirate hunts, he finds Narapathi and Mohini. He brings Mohini to the pirate island, and tries to hide her from the pirate leader. Nanjappan, the right hand of the pirate leader, finds out tells the leader about Mohini. As per the policy of the island, any treasure pirated must be auctioned and so Mohini is also auctioned. After a tight bidding, Manibadrudu bids the highest, buys her and keeps her with him.
After few dramatic events, Manibadrudu gets married to Mohini and as per the pirate island's laws the pirate leader cannot attempt to separate a married couple. The pirate leader attempts to take Mohini by force, gets defeated by Manibadrudu in a sword fight and reforms into a good man. He accompanies the slaves led by Manibadrudu, to achieve their goal of freeing Neidhal Naadu from the clutches of its cruel dictator. In the ensuing war, the dictator is defeated but tricks into arresting them instead. However, in his court the dictator begs Manibadrudu to take over the throne. Everyone else also supports the idea. However, Manibadrudu politely rejects the offer and further states that he wants to continue his noble work as a doctor, serving the people. He then takes leave from the royal court and walks away with his wife and his medical kit.