Aarti Shukla (Kriti Kharbanda) a PCS aspirant meets Satyendra "Sattu" Mishra (Rajkummar Rao), a clerk in the Excise Department, on her parents' persistence who are trying to fix her in an arranged marriage. Aarti finds Sattu's off-traditional views convenient, while Sattu is mesmerized by Aarti's beauty and intelligence. They fall in love and agree to marry. On the night of marriage, Aarti learns from her sister Abha that she has cleared the PCS Exam. She also informs her that her in-laws will not let her pursue her career. On Abha's and her maternal uncle's advice, Aarti flees from her house without informing Sattu, who is left heartbroken. Due to this incident, both Sattu as well as his family are disgraced by the society since the people assume there must be something wrong with him because of which the girl ran away on the night of the wedding.
