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
The Apu Trilogy & Sound", the British Film Institute's film magazine, listed "Pather Panchali" several times in its Critics' Poll of all-time greatest films, in 1962 (ranked #11), 1982 (ranked #79), 1992 (ranked #6) and 2002 (ranked #22). "The World of Apu" appeared in 1982, ranked at #42. In the 1992 edition, both "Aparajito" and "The World of Apu" were tied at #127, while "The Apu Trilogy" was ranked separately at #88. In a combined list of "Sight & Sound" critics' and directors' poll results in 2002, "Pather Panchali" was ranked at No. 28, "The World of Apu" at No. 93 and "Aparajito"