Listen to Bal Soi Bose Keno online. Bal Soi Bose Keno is a Bengali language song and is sung by Mantu Rani and Kazi Nazrul Islam. Bal Soi Bose Keno, from the album Sei Mithe Sure Vol. 2, was released in the year 1950. The duration of the song is 3:11. Download Bengali songs online from JioSaavn.