Happy Days follows the college life of boys and girls as they experience love, friendship, responsibility, etc.Chandu (Sandesh), Rajesh (Nikhil), Shankar (Vamsi Krishna), Tyson (Raahul), Madhu (Tamanna), Appu (Gayatri Rao) and Sangeeta (Monali Chowdary) are a bunch of freshers in a college. They all together make a fine gang. Chandu - Madhu, Rajesh - Appu Shankar - Sangeeta soon build up their
relation and become pairs. Tyson - a nerd with a heart of gold - ends up falling in love with a senior Sravanthi (Sonia). The rest of the story is how they spend their four years of their education in the campus and express love for their respective dear ones.It is all about laws of attraction. The film is told in Chandu's point of view but it mostly deals about love, jealous and campus comedy.