Professor Abanish Mitra, who teaches botany, is newly married to Sulekha. He is known for playing pranks and is the
antithesis of regular professors while Sulekha is in awe of Advocate Prashanta Ghosh, the so-called "highly-
intellectual" husband of her older sister, Labanya, and looks upon him as her idol. Thanks to Sulekha's excessive praise of Prashanta, Abanish develops an inferiority complex and decides to prove that he is in no way a lesser mortal. Meanwhile, Prashanta has written a letter to Sulekha and Sumitra's older brother Haripada, instructing him to send a driver for him to his residence in
Allahbad, who can speak good Bengali language because his present driver, Mosaheb Lal, uses improper dialect. This provides the perfect opportunity for Abanish to get to see and interact with Prashanta, playing a practical joke upon them. Going to Allahbad, in front of Prashanta, Abanish disguises himself as "Gourhari Basu", a motor-mouth driver, who pretends to hate the English language and so speaks only Bengali. Since Prashanta is a stickler for good manners and impeccable prowess over Bengali, Abanish presents a blemish-free profile as Gourhari. Both Prashanta and Labanya are happy with him as driver, mainly because Moshaheb Lal, their other driver, is cheeky and inept, and is known for robbing his employer of petty sums complaining of niggling technical motor problems. Eventually, Gourhari appears a God-send and gets selected as the driver by Prashanta. Although he was praised for his in-depth knowledge of driving and car mechanics, Gourhari keeps pelting them with silly queries, raising questions on the funniness of the English language. As per Abanish's plans, Sulekha declares her arrival at Allahabad some days later, and lies to Prashanta and her sister Labanya that being involved in some important work, Abanish will arrive after a few days. Gourhari's eyes brighten, much to the irritation of the Ghoshs, who find a servant's joy at Sulekha's arrival highly inappropriate. In the next few days, Prashanta and Labanya notice and are by the intimacy between the new driver and Sulekha. They are further annoyed when she talks to him endlessly, sings with him, sits with him in the front seat in the car and has only pleasant things to say about this unnerving irritant. Firstly, Sulekha pretends to know Gourhari and hardly talks of Abanish, her boring husband, and secondly, they put across the impression that Sulekha is having an
extramarital affair with Gourhari, which perturbs Prashanta and Labanya. Both of them keep worrying that when Abanish will come to Allahabad, he will get extremely angry seeing his wife getting cozy with this servant. Meanwhile, their suspicions grow when a packet of cigarettes and above all, a burnt cigarette were found in Sulekha's room, which Abanish himself had accidentally smoked and left behind. All on a sudden, Abanish and Sulekha elope from Prashanta's house to
Kanpur, to go on their honeymoon, keeping Prashanta and Labanya in disappointment. Abanish hires his long-time friend, Subimal Ghosh, a professor of Physics, to temporarily act as Abanish and portrays him as a serious and boring
lecturer, the complete opposite of the real Abanish's character. On the other hand, his another long-time and Allahbad-based friend Binoy Sen, is also party to the prank, who was even Prashanta's old acquaintance and brotherly. Basudha, the younger sister of Binoy, suspects fake "Abanish" (Subimal) of infidelity to his wife, "Sulekha", when he tries to grow close to her. Subimal falls in love with Basudha, who initially believes him to be Abanish, but Sukumar reveals her the real drama behind all this mix-up of situations, while Latika is also furious over the latest "extramarital" affair. However, towards the end, Subimal and Basudha escape from home and get married in a
temple with the blessings of Binoy. To Prashanta's surprise, Gourhari appears there along with Sulekha. There, Haripada coerces Gourhari to "kill" himself so that Abanish could surface. Thus, Prashanta, Labanya and Latika come to comprehend the whole enactment with Prashanta finally admitting that he was truly fooled. The film revolves around the resolution of these funny mishaps. ==Cast==