Listen to Koto Din Bade Bihan online. Koto Din Bade Bihan is a Bengali language song and is sung by Ananda Kumar and Nupur Das. Koto Din Bade Bihan, from the album Koto Din Bade Bihan, was released in the year 2016. The duration of the song is 7:04. Download Bengali songs online from JioSaavn.