Shakthi, a street-smart and fun-loving guy, attends a wedding where he encounters Shruthi Subramaniam, an intelligent and quirky woman assisting the wedding coordinator. Shruthi suspects him of gatecrashing to eat for free, but he convinces her that he's part of the film crew. Intrigued by Shruthi's dance, he records a video of her routine and tracks her down the next day. However, Shruthi reveals her ambition of starting her own wedding planning business, showing no interest in Shakthi's advances.
Both Shakthi and Shruthi face familial pressures—Shakthi is urged to return to his village and work in the sugarcane fields, while Shruthi's family wants her to get married soon. Shruthi makes a deal with her parents to focus on her exams and take five years to establish her business before marriage. When Shakthi's father arrives to take him back, Shakthi lies about starting a wedding planning business and stays with Shruthi. Despite promising no romantic complications, Shruthi rejects his advances.
Shruthi hopes to learn about planning high-class weddings and meets Chandralekha, a renowned wedding planner. Shakthi accompanies Shruthi, and Chandra offers him a job after spotting him. Shakthi accepts on the condition that Shruthi is hired too. While working with Chandralekha, Shruthi discovers her unethical practices, leading to a confrontation with an angry client. Shakthi defends Shruthi and both quit, starting their own business, Getti Melam, with equal partnership.
They begin organizing small weddings successfully and eventually land a big client. After a hectic yet successful wedding, they celebrate and end up sleeping together. Shakthi feels uneasy and avoids Shruthi, unaware that she has fallen in love with him. Misunderstanding her intentions, he tells her the night meant nothing to him. Shruthi hides her true feelings but is heartbroken.
Their strained relationship leads to a major fight, causing Shruthi to break their partnership, forcing Shakthi to start his own business. Both struggle financially and accumulate debt. However, they receive a lucrative contract that requires them to work together. Despite their differences, they collaborate to recover their losses, dividing the workload. During the wedding preparations, Shakthi tries to dissuade Shruthi from getting married, claiming it's wrong and driven by revenge. However, Shruthi defends her decision, revealing she moved on after realizing Shakthi didn't reciprocate her love.
Shakthi realizes his love for Shruthi but was afraid it would affect their business. Desperate to win her back, he confronts Shruthi's fiancé and confesses his love for her. Upon learning about Shakthi's actions, Shruthi breaks off her engagement and meets Shakthi on a rooftop. They confess their love for each other, and Shruthi calls off her engagement, sealing their reconciliation with a passionate hug.
