Listen to Kaal Raater Bela Gaan online. Kaal Raater Bela Gaan is a Bengali language song and is sung by Rejwana Chowdhuri Bonna. Kaal Raater Bela Gaan, from the album Valobashi Valobashi, was released in the year 2016. The duration of the song is 4:29. Download Bengali songs online from JioSaavn.