In "Mahanagar", Mukherjee plays Arati, who takes a job as a saleswoman due to financial constraints in the family. The large joint family is horrified at the thought of a working woman. For Arati, going door to door selling knitting machines opens up a whole new world and new friends and acquaintances, including an Anglo-Indian friend, Edith. Earning money also raises Arati's status in the family especially when her husband (Anil Chatterjee) loses his job. When Edith is sacked unfairly, Arati resigns in protest...Mukherjee's towering performance as Arati dominates the film. Film critic Roger Ebert wrote: "It might be useful to see the performance of Madhabi Mukherjee in this film. She is a beautiful deep, wonderful actress who simply surpasses all ordinary standards of judgment."