Based on the 2016 Kolkata flyover collapse, the film relates the lives of many people from the city Kolkata, and shows how the unfortunate incident affects them and brings about a change in their lifestyle.
The plot is based on the life and contribution of Binoy, Badal and Dinesh, revolutionary trio. On 8 December 1930 they entered into the Writers' Building and killed British officers.
In August 1947, the British passed a bill regarding the partition of Bengal. Delving into the grim history of the Partition, Mukherjee's movie Rajkahini is woven around a border between the two nations that runs through a brothel housing 11 women.