Guddu Ki Gun is the story of Govardhan aka Guddu (Kunal Kemmu), a Bihari settled in Kolkata. He's a door-to-door washing powder salesman, whose gross sales pitch is "Ek washing powder ke saath Guddu free". Whereas sharing a room along with his shut good friend Ladoo (Sumeet Vyas), Guddu leads an amorous way of life in Kolkata. His travails begins when he ditches certainly one of his girlfriends, Bholi (Aparna Sharma). Livid for forsaking his granddaughter, Bholi's grandfather casts a black magic spell on him. The one method Guddu can eliminate the curse is to search out real love and by staying devoted to her.