Listen to Kaha Hai Unhone Yeh Raaz-E-Mohabbat online. Kaha Hai Unhone Yeh Raaz-E-Mohabbat is a Hindi language song and is sung by Lata Mangeshkar. Kaha Hai Unhone Yeh Raaz-E-Mohabbat, from the album Anhonee, was released in the year 1952. The duration of the song is 3:45. Download Hindi songs online from JioSaavn.