Shambhu a film which was in the making for long has another campus based subject. After a long time Vijayakumar dons the title role, the other major flicks  with him in the lead being Kulapathy and Leader. Shambhu tells us the story of young Brahmin student Shambu Mahadevan who is the son of noted Tamil writer Shankari Mahadevan.

Shankari, in her teens falls in love with Mahadevan and marries him. Bad fate struck as, Mahadevan passes away a few years after the marriage, leaving Shankari and their two children, Shambhu and Ranjini. Shankari, who is also a college lecturer, gets transferred to Palakkad and settles in a small rented house with her children. By that time Shambhu has grown up into a college-going youth. Shankari wants her son to be an IAS officer and Shambhu too concentrates on his studies. He has a few friends in the college where life is fast and furious. But he accidentally becomes a victim of campus politics and is jailed for an offence, charged with a murder he never committed. All he is left to do is to prove himself innocent. How he manages to come out is the ploy of Shambu, in which Vijayakumar plays the title role as Shambhu.