The story starts in the 9th century. King Raja Raja Chola presents his valuable sword to his commander-in-chief, for playing a vital role in winning a war. It is preserved by his family's descendants. In the present, an archaeologist plans to steal the sword due to its monetary value. Presently, a landlord Shanmugam is charged with the care of the sword.
The archaeologist plans to send Raja to steal the sword. He enters into the palace as the son (who ran off from the family in his childhood) of Kumarasamy, Shanmugam's son-in-law. Initially, everything goes smoothly. However, Indhu, Shanmugam's granddaughter, falls in love with Raja. The situation called for Raja to marry her. Later, Indhu discovers the truth and confronts him about stealing the sword.
In the meantime, Shanmugam, not knowing Raja for what he came there for, gives the sword to him and asks him to look after it. This makes Raja realise his mistake and promises him to protect it. The climax occurs when Raja manages to protect the sword from the archaeologist, and the family accepts Raja after learning the truth.
R. P. R. of Kalki praised the performances of Gemini Ganesan and Thilakan but panned the editing for having kept the scenes lengthy and found the stuff revolving around sword unbelievable.[7]
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