Bombay thug Munnabhai and his loyal pal Circuit are back in this blockbuster sequel to the popular hit Munnabhai M.B.B.S. Smitten by the voice of popular radio jockey Jhanvi, Munna sits by the radio all day long as dreams of marriage and romance drift through his restless mind. When Jhanvi invites Munna to meet her family under the false pretences that the lovable goon is actually a history professor, the prospect of giving a history lecture to her unsuspecting parents proves even too devious for a seasoned deceiver who thrives on misleading others. Though his "dadagiri" business is flourishing, Munna must now enlist the aid of his trusted friend Circuit in coming up with a solution to get his love life back on track with his professional life. Just when Munna thinks he's got his pressing problem all worked out, the arrival of a figure from history finds this phony history professor facing a most unusual case of the past catching up with the present.