Listen to Amar Ar Koto Kal online. Amar Ar Koto Kal is a Bengali language song and is sung by Choto Momotaz and Shopna. Amar Ar Koto Kal, from the album Khelar Sathi, was released in the year 2002. The duration of the song is 4:34. Download Bengali songs online from JioSaavn.