Gattu (Rajkummar Rao) is below average in studies, has no potential income, and falls in love with his neighbour Binni (Shruti Haasan). He has been adoring her since childhood but could not express his feeling because of his tameness. They live in a society where all the females are to be considered mother or sister figures by the men and young boys! He somehow proposes her and after a few 'nakhras' she accepts his proposal and then begins their courtship.
Twist in the story comes when Gattu's father sees Binni with Gattu's best friend Bhura (Herry Tangri) and assumes that they have an affair. Soon, Gattu's father confronts this news to Binni's family and then it gets further spread to the whole of the society. Meanwhile, Binni's brother has finalized her marriage with a French dude Rahul (Gautam Gulati). All this drama and madness goes to a different level when Bhura's father (Gulshan Grover) enters the scene making it even more comical and chaotic! Will Gattu break his brotherly image and confess his love for Binni in front of the society?