Producer Udhayanidhi Stalin is turning a full-time actor with Oru Kal Oru Kannadi, which is out and out comedy entertainer. With hilarious one-liners and wonderful performances of the lead stars, the Tamil film wins the heart of the audience.
The story begins with a courier boy delivering a post to Saravanan (Udhayanidhi Stalin), where he receives a wedding invitation of his girlfriend Meera (Hansika Motwani). In order to stop the marriage, he sets a journey to Pondicherry along with Parthasarathy (Santhanam) in a car. As they move ahead, a flashback opens up, which tells the tale of their friendship and their love story.
Saravanan, who is a childhood friend of Partha, sees a masked girl at a traffic signal when he was on his way to drop his mother (Saranya Ponvannan) to a college. The mother and son pass on a comment that makes her to remove her scarf and show her face. The moment he sees her face, he falls in love with her and the love story begins. The rest of the tale is advised to watch on-screen.