Listen to Koto Ar Dukkho Buke online. Koto Ar Dukkho Buke is a Bengali language song and is sung by Emon Khan. Koto Ar Dukkho Buke, from the album Jar Lagiya Kande Mon, was released in the year 2017. The duration of the song is 3:59. Download Bengali songs online from JioSaavn.