Listen to Koto Gan To Holo Gaoa online. Koto Gan To Holo Gaoa is a Bengali language song and is sung by Iffat Ara Dewan. Koto Gan To Holo Gaoa, from the album Swapane Tahare Kuraye Peyechhi, was released in the year 2024. The duration of the song is 4:48. Download Bengali songs online from JioSaavn.