Avishkaar (English: Invention) is a 1974 Hindi movie. Produced and directed by Basu Bhattacharya the film stars Rajesh Khanna and Sharmila Tagore. The film was the part of Basu Battacharya's introspective trilogy on marital discord in an urban setting, which included Anubhav (1971) and Griha Pravesh (1979) The movie was critically acclaimed with critics giving it five out of five stars in the Bollywood guide Collections.