Munnabhai is a happy man, he lives with his gang in the by-lanes of a 'dhobi ghat' in Mumbai; takes pride in being a 'social worker' (they actually settle 'financial disputes' through 'dadagiri'), enjoys his booze, babes, and brawls, followed by a good night's sleep. Not much bothers Munna, except his parents' annual visit from the village. Munna's father, Hari Prasad Sharma, an upright moralistic man, believes that his son is actually a doctor running a charity hospital, a ruse that is about to fall farcically flat on it's face when an arranged marriage looms. Munnabhai MBBS is a hilarious and heart warming story of a local goon's journey into the medical world - a place he neither belongs to nor believes in.