Bitti Mishra, portrayed by Kriti Sanon, is a spirited young woman living in Uttar Pradesh, cherished dearly by her father. However, her traditional mother is hoping to see her married to a suitable man from a respectable family. Unlike many typical daughters, Bitti is free-spirited; she smokes, enjoys the company of boys, and is unable to tolerate the narrow-minded attitudes of the local suitors. Ultimately, she desires a partner who appreciates her authentic self.
Her journey begins when she discovers a book titled Bareilly Ki Barfi, where she finds her own personality mirrored in its pages. This sparks a fiery wish to meet the author, Pritam Vidrohi, played by Rajkummar Rao. While on her quest to find him, she encounters Chirag Dubey, enacted by Ayushmann Khurrana, the owner of a printing press that helped publish the book. Unbeknownst to Bitti, Chirag is the actual author; he wrote the book in heartache to protect the identity of his ex-girlfriend, who has since married.
Bitti’s introduction to the book comes through Chirag's friend Munna, depicted by Rohit Choudhary, who runs a bookstore at the railway station. Captivated by the book, Bitti yearns to meet Pritam and seeks his address from Munna. Munna then relays this request to Chirag, who decides to act as a mediator. Bitti is determined to discover how Pritam understands her so well, leading to a playful exchange of letters with Chirag standing in for Pritam.
As Bitti and Chirag spend more time together, he begins to see the striking resemblance between her and his ex. Bitti eventually reveals her heartbreak over Pritam’s silence. In a bid to get Pritam to meet her, Chirag learns that Pritam is pretending to be a Merc salesman but is really a saree salesman. In a twist, Chirag seeks to manipulate Pritam into behaving rudely to protect Bitti, only to discover a softer side to Pritam.
Their first encounter is a laughable chaos, as Pritam puts on a tough front that irks Bitti. Nevertheless, when they share a meal with her parents, they take an instant liking to Pritam's "bad boy" charm, viewing him as a potential match for their daughter. As Bitti's feelings for Pritam grow, it becomes apparent that Pritam himself has eyes for Bitti's friend Rama, portrayed by Swati Semwal, complicating matters further.
Chirag, wanting to protect Bitti’s heart, struggles with his own feelings as he attempts to steer Pritam away. Bitti's mother pressures Chirag to encourage Pritam to marry her daughter, but complications arise when Chirag reveals Pritam's past. In a confrontation, Pritam vows to win Bitti's heart out of spite against Chirag, setting off a hilarious and chaotic love triangle.
As the story unfolds, Munna advises Chirag to confess his feelings, recognizing the bond he has formed with Bitti. Despite the emotional turmoil, Pritam and Bitti's engagement becomes a reality, with Chirag caught in a web of unspoken truth.
On the day of the engagement, Chirag grapples with revealing his secret, only to find Bitti radiantly happy. Ultimately, he chooses silence and blesses the union. However, during the ceremony, Bitti reveals that she knew all along that Chirag was the true writer of the book. This revelation tears down the final barriers as Bitti seeks to understand whether Chirag's feelings are for her own sake or merely a reflection of his past.
In a heartfelt moment, Pritam sincerely apologizes to Chirag, fully acknowledging the tangled web of emotions, and together they embrace their intertwined destinies as Bitti and Chirag celebrate their engagement, leaving behind a tale of love, comedy, and self-discovery.
