Minnale - Rajesh and Samuel (Madhavan - Abbas) are college mates and bitter rivals. Samuel goes abroad for higher studies while Rajesh takes up a job. Rajesh, on a trip to Bangalore, comes across Reena and is smitten by her charm.

To his pleasant surprise he sees her again in Chennai and tries to plan his moves to get closer to her. But there is a hitch. Reena is engaged to Rajiv from the U.S. But, as all is fair in love and war, Rajesh is persuaded by his friend Chockalingam (Vivek) and grandpa Subbuni (Nagesh) to impersonate Rajiv and enter Reena's life. Rajesh gets to spend five blissful days with Reema, who reciprocates his love till Rajiv appears on the scene and Reena discovers Rajesh's duplicity. Rajesh too gets a rude shock when he discovers that Rajiv is none other than his old college rival Samuel. How the matter is resolved forms the rest of the story.