Koyal Boli Duniya Doli Samjho Dil Ki Boli (The Greatest Muhammad Rafi & Lata) Movie: Sargam (1979) Music: Laxmikant Pyarelal Starring: Rishi Kapoor Jaya Prada Shakti Kapoor Directed by: K Vishwanath Produced by: N. N. Sippy Written by: Jainendra Jain (Dialogue), V. D. Puranik (Dialogue Director)