Rajesh Khanna had great interest in music and a terrific sense of melody too. His music is dominated by Pancham (R.D. Burman) and us and we accepted Shakti Samanta's Anurodh only because Rajesh Khanna had some misunderstanding with Pancham then and did not want to work with him.Khanna would always request music directors to fit in Kishore Kumar wherever possible. In fact, Kishoreda was very reluctant to sing "Waada Tera Waada" in Dushman and suggested us to get it sung by Rafi. Then Laxmikant made Kishoreda meet Rajesh Khanna and Khanna winked at Laxmikant and told Kishoreda that in that case the song should be scrapped. On hearing this Kishore immediately agreed to sing it by himself for Khanna.