Nandini, an orphan raised in the Chola palace, falls in love with Prince Karikalan. Their relationship is forbidden by the Queen due to Nandini’s low status, leading Nandini to leave and marry the Pandya King. Years later, Karikalan unknowingly kills the Pandya King—Nandini’s husband—igniting her desire for revenge. She leads a rebellion to destroy Karikalan and the Chola Dynasty. A trap is set, luring Karikalan to his death under false pretenses. Despite his love confession swaying Nandini, the rebels assassinate him. Realizing her mistake too late, Nandini descends into guilt and madness, ultimately becoming a tragic villain.