Listen to Koto Phool Koto Gaan online. Koto Phool Koto Gaan is a Bengali language song and is sung by Nasima Shaheen. Koto Phool Koto Gaan, from the album Keno Fhire Gele, was released in the year 2018. The duration of the song is 4:12. Download Bengali songs online from JioSaavn.