The autocratic disciplinarian Narayan Shankar (Amitabh Bachchan) governs Gurukul with an iron hand. He runs the institution keeping in mind its three pillars -- Tradition, Honour and Discipline. Every year he reminds the fresh batch of students that the outside world is closed to them once they have decided to enrol in this prestigious institution. And he warns them that any flouting or bending of rules will not be tolerated.
To this institution come three youngsters. Boys from different parts of the country, with difference characteristics and different stories to tell. They enter this cold and strict atmosphere where only excellence is encouraged, where fun and frivolity is frowned upon, where laughing or sharing a joke is deemed unacceptable.
It is here that Vicky (Uday Chopra), Sameer (Jugal Hansraj) and Karan (Jimmy Shergill) form a kind of unbreakable bond. A bond that will require them to face the most difficult of tests and make choices that they never thought that they would have to make. Because it is here that these boys break the cardinal rule of Gurukul and Narayan Shankar... they fall in love.
When Vicky, Sameer and Karan first meet Ishika (Shamita Shetty), Sanjana (Kim Sharma) and Kiran (Preeti Jhangiani), respectively, their lives are placed in a turmoil as they would like to meet the girls, talk to the girls and dream about the girls, but the omnipotent figure of Narayan Shankar looms large.
It is only with the arrival of Raj Aryan (Shah Rukh Khan), the maverick music teacher, who encourages the boys to follow their hearts and break open the gates of Gurukul, that the boys actually begin living a life that they earlier only dreamed of.
