Mettukudi

A man pretends to be the son of a long-lost royal family to steal a precious sword. However, his plan runs into complications when Indhu, the sword's guardian's granddaughter, falls in love with him. The story starts in the 9th century. The King Raja Raja Chola presents his valuable sword to his soldier for playing a vital role in winning a war. It was preserved by his family descendants. This information was known by an archaeologist who plans to steal it due to its monetary value. Presently, Gemini Ganesan is charged with the care of the sword. The villain plans to send Raja "Karthik" to do this job. He enters into the palace as the son "who ran off from the family in his childhood" of Manivannan, who Gemini Ganesan's son-in-law. Everything went smooth initially. However, Indhu "Nagma", Gemini Ganesan's granddaughter, fell in love with him. The situation called for Raja to marry her. Later, Indhu came to know the truth and challenges him about stealing the sword. In the meantime, Gemini Ganesan, not knowing Raja for what he came there for, gave the sword to him and pressed him to look after it. This made Raja realize his mistake and promises him to protect it. The climax occurs when he manages to protect the sword from the villain, and the family accepted Raja after learning the truth.