Listen to Yeh Nach Wach Kya Hai online. Yeh Nach Wach Kya Hai is a Hindi language song and is sung by Kalyanji-Anandji and Mohammed Rafi. Yeh Nach Wach Kya Hai, from the album Ek Hasina Do Diwane, was released in the year 1971. The duration of the song is 6:35. Download Hindi songs online from JioSaavn.