Listen to Kalo Bou Valo Lagena online. Kalo Bou Valo Lagena is a Bengali language song and is sung by Rana Bappy. Kalo Bou Valo Lagena, from the album Kalo Bou Valo Lagena, was released in the year 2023. The duration of the song is 4:14. Download Bengali songs online from JioSaavn.