Ganapa is based on an incident in Bengaluru's underworld. The film takes a realistic approach, not on rowdyism, but on people affected by it.

Set in the heart of Bengaluru in City Market, the film follows the fight between two gang lords. Landing right in between their rivalry is an orphan Tyru. He loves nothing more than his food and films. And there are a few cleverly written dialogues that highlight these, which also evoke laughter from the audience. Tyru is re-christened as Ganapa by the gang lord Jayanna, whose life he saves, and he becomes an intrinsic part of his team. In between the mess, he chances upon a missing mobile, which leads him towards the heroine. They talk and the conversations brew romance. But what happens when Jayanna's lascivious son too lusts for the same girl?