Rajesh Shivakumar [R. Madhavan] and Rajiv Samuel 'Sam' [Abbas] begin as rival students at an engineering college in Ooty, each shaping a very different story of college life. Sam is the quintessential high achiever, beloved by peers and professors alike for his top grades and easy confidence. Rajesh, by contrast, is known for his rebellious mood, a volatile temper, and a propensity for mischief that rubs people the wrong way. Their clash becomes the defining thread of their years together, fueling constant pranks, sharp put-downs, and escalating confrontations that mark their every encounter. When they finally graduate, they part ways with a vow never to meet again: Sam heads abroad to the United States for a new job, while Rajesh chooses to stay in India, carrying the baggage of his stubborn pride.
Two years pass. Rajesh has settled into a new life as a software engineering instructor in Chennai, moving through days with his close friend Chockalingam “Chokku” [Vivek], who stands by him through thick and thin. Rajesh also shares a home with his grandfather Subbuni [Nagesh], a gentle librarian from the Aminjikarai neighborhood whose quiet wisdom keeps the young man grounded. The decision to reject an on-site opportunity in Singapore, despite its allure, shows how deeply Rajesh values his bond with Subbuni. A trip to Bangalore becomes a turning point when Rajesh spots a young woman dancing with children in the rain, her face brightened by a sudden flash of lightning and an instant, almost magnetic attraction seizing him. He sees this woman again later at a friend’s wedding, and he learns her name: Reena Joseph [Reema Sen], a chartered accountant working at Ford in Bangalore. Soon after, Rajesh notices Reena again, this time stepping out of a Ford office cab in Chennai, and his pursuit begins in earnest. He and Chokku chase the chance of catching her attention, but in a bustling mall they lose track of her.
Desperate for clues, Rajesh and Chokku seek out Reena’s circle and meet Vasuki, Reena’s best friend, at a market. Vasuki reveals that Reena has recently been transferred to Chennai, and that her life is already on a path she believes to be secure—she has become engaged to Rajiv Samuel, a software engineer from Seattle who was a childhood friend. This revelation cools Rajesh’s ardor, for he learns that Reena has been spoken for for some time, and he fears a futile pursuit. Yet as he digs deeper, he discovers a more complicated truth: Reena has never met Rajiv since their shared childhood, and it is the possibility of real connection, not just the idea of him, that draws her toward Rajesh. Encouraged by Subbuni and Chokku, Rajesh decides to press on, but with a bold, risky plan: he will impersonate Rajiv to win Reena’s heart.
With a careful act of deception, Rajesh earns Reena’s affection, and the two grow closer. Just as the bond seems secure, the real Rajiv arrives in Chennai, and Reena confronts the truth: the man she has fallen for is an impostor. Heartbreak and embarrassment follow as she ends things with Rajesh and warns him to stay away. This turn of events drives Rajesh, Chokku, and their friends to seek out Rajiv Samuel to end the engagement in earnest. The moment arrives when Rajiv—a.k.a. Sam—appears, and Rajesh discovers that his old nemesis is the man behind Reena’s arranged union. The revelation status is complicated: Rajiv Samuel is Sam, the same person who has teased and tormented Rajesh in the past, making the confrontation both personal and intense. Sam refuses to call off the engagement, insisting that he will not break up with Reena unless she wants it.
A tense confrontation unfolds as Rajesh, Chokku, and their circle confront Sam in a parking lot, determined to protect Reena’s happiness. Yet in a sign of maturing love and restraint, Rajesh steps back from violence, acknowledging that winning Reena by force would be hollow and inappropriate. He recognizes that Reena’s choice belongs to her, not to his stubborn will. In a parallel arc, Rajesh decides to seize another opportunity abroad—an on-site assignment in Singapore—so he can move on with his life, even as the thought of Reena lingers.
Meanwhile, Reena’s feelings complicate the picture in surprising ways. She realizes that she has fallen in love with Rajesh, even after the pain of deception and heartbreak. The impending wedding to Sam becomes a turning point rather than a triumph of fate, as Sam himself senses the truth in Reena’s heart: she loves another. On the day that should seal their union, Sam interrupts the ceremony, recognizes the depth of Reena’s love for Rajesh, and makes a radical decision. He accompanies Reena to the airport, where Rajesh waits for a flight to Singapore, resolute in his choice to move forward. Sam explains that he refuses to marry a woman who does not truly love him, and with that, he steps aside to let Rajesh and Reena choose their own future.
In a final, redemptive moment, Rajesh and Reena are united. The trials of deception, pride, and rivalry give way to a shared sense of hope and a chance at a genuine life together. The story closes on their reunion—two people who survived missteps and misunderstandings, learning to trust each other and to let love guide their choices rather than ego or rivalry.
Characters reappear only as needed throughout the narrative, with the emotional core focusing on the evolving relationship between Rajesh Shivakumar [R. Madhavan], Reena Joseph [Reema Sen], and Rajiv Samuel 'Sam' [Abbas], alongside the steady presence of Subbuni [Nagesh], Chockalingam "Chokku" [Vivek], and Vasuki [Raji Iyer] whose friendships anchor the journey. The film traverses themes of youth, pride, forgiveness, and the surprising ways love can rewrite a person’s path, all set against the colorful, bustling backdrop of southern India’s cities and the universal pull of a second chance at happiness.
