Listen to Na Jane Kya Hai Dil Ka Raaz online. Na Jane Kya Hai Dil Ka Raaz is an Unknown language song and is sung by Kanan Devi and R.C. Boral. Na Jane Kya Hai Dil Ka Raaz, from the album Stars from Another Sky Pt. 1: Film Songs from the Subcontinent Before the World Was Torn Asunder, 1932-1939, was released in the year 2025. The duration of the song is 3:19. Download Unknown songs online from JioSaavn.