Two friends, Arjun Singh (Amitabh Bachchan) and Pyare Mohan (Govinda), are in the police force. Arjun's sister Seema (Raveena Tandon) is in love with Pyare. Arjun has no female companion and some pretty crude comments are often passed about his age.
 Meanwhile, the villain Jorawar (Paresh Rawal) kills a cop who tries to pry into his private affairs—that's smuggling of arms and diamonds. Rawal also appears terrified of the police, but the mood seems to come and go. For when it comes to snuffing one out, he has no problem doing it. Along with the cop, he also gets rid of an eyewitness, played by Divya Dutta in a blink-and-you-miss-her role.
 But there's another eyewitness, Neha (Ramya Krishnan), friend of the girl you hardly saw. She comes up to Arjun, confusing him for Pyare, but that's all cleared up in a few song sequences or so. Darned useful, these songs; nice way to get rid of uncomfortable problems.
 Anyway, the trouble begins when the villains begin hunting for Neha, just when she's cavorting around with Arjun. Just when the heroes are all ready to go up a notch over the villains, in pop two petty thieves whom even their mothers would confuse for Arjun and Pyare. They call themselves Bade Miyan and Chote Miyan. The plot's in knots.
 Arjun and Pyare are blamed for every crime the crooks commit and things aren't helped when Anupam Kher, the police commissioner, is also thrashed by the doubles.