Dilliwalli Zaalim Girlfriend is the story of two innocent friends, Dhruv (Divyendu Sharma) - an aspirant IAS officer and Happy (Pradhuman Singh), who's a happy go lucky fun guy. Life becomes a depressing mess for them from the time Dhruv takes a private loan from a company where Sakshi (Prachi Mishra), the girl Dhruv loves, works. He in fact buys a car from the loan just to woo her too. There starts their encounter right from today's super materialistic girls (where money comes above love), the finance company, the system and many more on the way, remains pretty Zaalim; leaving them to sort their problems on their own. Despite all the crooks they face, Dhruv and Happy along with another friend of theirs Nimmy (Ira Dubey), get together taking matters in their own hands and expose one of the biggest rackets underlying in Delhi. Though Dhruv buys the car to woo the girl who could never be his, in the process to get it back, he finds the right girl who was always out there next to him - Nimmy.