Lingesan is a bodybuilder from Chennai, whose main ambition is to become Mr. India. He wins the title of Mr. Tamil Nadu, which gives him direct entry to the Mr. India pageant. He is infatuated with Diya, a leading supermodel. Diya is soon blacklisted, with all her advertisement film contracts cancelled by John, her co-star in all her advertisements, after she constantly rejected his sexual advances. To save her career, Diya decides to replace John with Lingesan, whom she had earlier met at one of her shoots, as her co-star for her next advertisement. The shooting is to take place in China at the same time when the Mr. India pageant is to take place, but Lingesan agrees, sacrificing his Mr. India ambitions in the process.
Lingesan is given a makeover by Diya’s stylist, a transgender woman Osma Jasmine. The shoot initially does not go well as Lingesan is shy and awkward around Diya. On her director’s advice, Diya pretends to fall in love with Lingesan so that he would loosen up and perform better during the shoot. The plan proves successful but Diya soon tells Lingesan the truth. Hurt, he focuses on modelling instead of her. They both gradually excel in the modelling industry as the lead pair. As time passes, Diya reciprocates Lingesan’s love for her and they soon get engaged.
In his journey from a bodybuilder to a top model, Lingesan makes many enemies, including John, whose modelling career was ruined due to Lingesan’s rising popularity, forcing him to appear in local advertisements to stay afloat; Osma, who was infatuated with Lingesan and revealed her feelings to him, only to be rejected; industrialist Indrakumar, whose company suffered losses when Lingesan refused to endorse their soft drink as it was reported to contain pesticides; and another bodybuilder Ravi, who also competed for the Mr. Tamil Nadu title but lost to Lingesan. These four people conspire to take revenge on Lingesan and destroy his fame and modelling career.