Gullu Dada Returns is another of those no-frills comedies imbibed with the Hyderabadi flavour, whose key source of humour is the local dialect. It revolves round a young resourceful man Aziz (Aziz Naser), who wants to have a lavish wedding reception but doesn't have enough money in his kitty.
His friends are too broke to lend him any money, so despite being the right-side-of-the-law kind of person, he is forced to borrow from the loan shark Gullu Dada (Adnan Sajid) - fully meaning to pay him back. Now Gullu Dada is a source of much terror for his borrowers. The rest of the story deals with Aziz's repayment blues.
Gullu Dada's antics - his attempts at romance, his extortion rounds, and his being outwitted by Aziz - are what lend this film the humour tag. Surprisingly, there's much less comedy in this one than you'd expect. Maybe because it's not too noisy - there is thankfully very little physical humour, no crude jokes, and a fair bit of situational and dialogue-oriented comedy.