Listen to Saghan Gahan Raatri - Instrumental online. Saghan Gahan Raatri - Instrumental is a Bengali language song and is sung by Dilipkumar Roy and Rabindranath Tagore. Saghan Gahan Raatri - Instrumental, from the album Dilip Roy- Instrumental Tagore Songs, was released in the year 1988. The duration of the song is 3:56. Download Bengali songs online from JioSaavn.