Suraj as the heir to his father's milk business, which makes way for a few bizarre dialogues, which shows to be forced attempts at infusing humor. Suraj is in deep search of a life partner and just as his wedding date is to be fixed, his would-be in-laws are handed over photos of him having drinks. While Manoj Bajpayee enters and the trailer gets back real life. Manoj Bajpayee is the titular Mangal of the second half of the title name. He is a local detective, who runs a background check on would-be grooms and takes great pleasure in being instrumental in calling off weddings. Suraj, determined to take revenge, begins dating Mangal's sister by Fatima Sana Shaikh. Madhu Mangal Rane loses his calm when he realizes Suraj's evil plans and makes an effort to get his sister married off to someone else.