Listen to Koto Ful Koto Gaan online. Koto Ful Koto Gaan is a Bengali language song and is sung by Nasima Shaheen. Koto Ful Koto Gaan, from the album Keno Fire Gele, was released in the year 2009. The duration of the song is 4:13. Download Bengali songs online from JioSaavn.