Listen to Koto Kosto Kore Ma online. Koto Kosto Kore Ma is a Bengali language song and is sung by Chottu Boiragi Mahanto. Koto Kosto Kore Ma, from the album Chottobelar Kanna Hasi, was released in the year 2014. The duration of the song is 5:41. Download Bengali songs online from JioSaavn.