The protagonist of the film Kabir is a novelist who is deeply in love with a beautiful young girl of named Rachna. Rachna is brought up by her brother Laxmi Nivas and his wife, Sulochna. She idolizes her brother far too much and always talks about him and his greatness. A great part of Rachna's life revolves around her possessive, choosy, strict professor brother, as she shares a very deep bond with him. Rachna works for a company where she meets Kabir and it was love in the first sight. But soon, Kabir gets exasperated as Rachna always mentions her brother, even in the midst of most romantic circumstances.
Kabir decides to play a prank on Laxmi Nivas and lands up in the house incognito as a research student without having the slightest clue that in another part of the city he has a look-alike. The other guy is a small time goon and has nothing in common with Kabir except the looks. Finally Kabir's real identity is disclosed and Racha's brother gives his consent to the couple to get married.
The story then takes a twist as Kabir's look-alike Rasiya Bihari, who works for land mafia reaches the bungalow to evacuate it and finds everyone mistaking him as Kabir. When Rasiya sees Rachna in the house, he gives away his heart to her and decides to stay in the house as Kabir, following his foolproof plan to get the bungalow and the girl. To realize his dreams Rasiya kidnaps Kabir and locks him in his den.
Rasiya also meets Debu Daruwala who is a look-alike of Rachna's brother Professor Laxmi Nivas. Debu is a gay dance teacher who owns an old ancestral bungalow, which the underworld wants at any cost. Rasiya threatens Debu and replaces him with Laxmi Nivas, in place of the abducted Professor so his marriage with his love interest could happen peacefully.
The comedy of doubles becomes the comedy of double doubles when Kabir and Laxmi Nivas escape Rasiya's den and lands up in the same house turning the flow of the narrative into a hilarious, thrilling roller coaster ride full of surprises, shocks and stomach aching humorous situations.