The story begins with Raja (MGR), a wealthy and kind-hearted zamindar (landlord), who is deeply respected by the villagers. He leads a life of luxury but is grounded by his sense of justice and benevolence. Raja’s life takes an intriguing turn when he falls in love with Kalavathi (B. Saroja Devi), a beautiful and virtuous woman from the village. Their love blossoms, and they plan to marry, much to the joy of the villagers who admire Kalavathi’s grace and compassion.
However, their happiness is short-lived as an antagonist, Bhaskar (played by M. N. Nambiar), enters the scene. Bhaskar, who harbors feelings for Kalavathi, is consumed by jealousy and resentment. Driven by his unrequited love and desire for revenge, he devises a cunning plan to separate the couple and claim Kalavathi for himself.
Bhaskar’s scheme involves exploiting a curse believed to haunt Raja’s family. According to local legend, any woman who marries into Raja’s family would meet with an untimely death. Bhaskar uses this superstition to instill fear and doubt in Kalavathi’s mind, manipulating circumstances to make her believe that marrying Raja would lead to her demise. The fear of the curse takes a toll on Kalavathi, leading her to distance herself from Raja.
As the story progresses, Raja, deeply in love and determined to uncover the truth, embarks on a quest to break the curse and prove Bhaskar’s deceit. With the help of loyal friends and well-wishers, Raja delves into the origins of the curse, revealing it to be a fabricated myth created by Bhaskar to achieve his selfish ends.
In a dramatic climax, Raja confronts Bhaskar, exposing his treachery to the villagers. Kalavathi, realizing the truth and the depth of Raja’s love and sacrifice, reunites with him. The film concludes with the couple overcoming the odds, and Raja’s family curse is dispelled as a mere superstition, restoring peace and happiness to their lives.
“Kalavathi” stands out for its compelling storyline, captivating performances, and the strong chemistry between MGR and B. Saroja Devi. The film’s music, composed by Viswanathan–Ramamoorthy, adds to its charm, making it a memorable classic. The movie effectively combines elements of romance, drama, and the supernatural, delivering a powerful message about the triumph of love and truth over deceit and superstition.