Vijay and Genelia are classmates in a college in Ooty. Genelia rejects all proposals from lovestruck boys. The two have a few differences initially, but soon become good friends. But when Vijay expresses his love Genelia rejects it. But Vijay confidently tells her that she will fall in love with him in 30 days. The rest of the movie is all about how the lead pair patch up their differences and come together.