Bansi Chandragupta production designer Eugène Lourié and learned the craft of film designing. During the shooting of this movie, he met Satyajit Ray who asked him to join a group of film enthusiasts to form the Calcutta Film Society. Later, Ray asked Chandragupta to be set designer for his film "Pather Panchali". This collaboration sustained till "Shatranj Ke Khilari" (1977). Some of the best examples of Chandragupta's work are from the Ray films: "Pather Panchali", "Jalsaghar" and "Charulata". Apart from Ray's films, best works of Chandragupta's works are visible in "36 Chowringhee Lane" by Aparna Sen, "Umrao Jaan" by Muzzafar Ali and
Satyajit Ray and "Rupasi Bangla", Bibhutibhushan Bandyopadhyay's "Chander Pahar", Jim Corbett's "Maneaters of Kumaon," and Jawaharlal Nehru's "Discovery of India." He worked on a children's version of "Pather Panchali," a classic Bengali novel by Bibhutibhushan Bandyopadhyay, renamed as "Aam Antir Bhepu" ("The mango-seed whistle"). Designing the cover and illustrating the book, Ray was deeply influenced by the work. He used it as the subject of his first film, and featured his illustrations as shots in his ground-breaking film. Along with Chidananda Dasgupta and others, Ray founded the Calcutta Film Society in 1947. They screened many foreign films, many of which Ray watched