Listen to Kaal Raater Bela Gaan Elo online. Kaal Raater Bela Gaan Elo is a Bengali language song and is sung by Chandana Gangopadhyay. Kaal Raater Bela Gaan Elo, from the album Hridaytale Ason Mela, was released in the year 2008. The duration of the song is 5:38. Download Bengali songs online from JioSaavn.