Ayan Ranjan (Ayushmann Khurana) is a police officer from a privileged urban, international, background, whose very first posting is to rural north India, where three teenage girls have gone missing. His honesty does not sit well with the existing, deeply entrenched corrupt system, where in 2019, a 1000-year-old practice where human beings are divided on the basis of caste continues.
The film's title is a reference to an article of the Indian constitution that prohibits discrimination on the basis of caste, religion, race or sex.