Salil Chowdhury's composition for this song was based on a Sri Lankan folk song. He had previously used this tune in two other songs sung by Lata Mangeshkar - the non-film Bengali song "Saat Bhai Champa Jagore" (1961) and the Marathi film song "Preet Phule Majhi Soneri" ("Sunbai", 1962).[1][2]