 While making Aparajito , Ray had not planned a trilogy , but after he was asked about the idea in Venice , it appealed to him . He finished the last of the trilogy , Apur Sansar ( The World of Apu ) in 1959 . Critics Robin Wood and Aparna Sen found this to be the supreme achievement of the trilogy . Ray introduced two of his favourite actors , <unk> Chatterjee and Sharmila Tagore , in this film . It opens with Apu living in a Calcutta house in near @-@ poverty . He becomes involved in an unusual marriage with Aparna . The scenes of their life together form " one of the cinema 's classic affirmative depictions of married life . " They suffer tragedy . After Apur Sansar was harshly criticised by a Bengali critic , Ray wrote an article defending it . He rarely responded to critics during his filmmaking career , but also later defended his film Charulata , his personal favourite . 
