Listen to Saghana Gahana Ratri online. Saghana Gahana Ratri is a Bengali language song and is sung by Debabrata Biswas. Saghana Gahana Ratri, from the album Tumi Robe Nirobe 1, was released in the year 2015. The duration of the song is 4:38. Download Bengali songs online from JioSaavn.