Listen to Ai Mrettu Upottaka online. Ai Mrettu Upottaka is a Bengali language song and is sung by Kamrul Hasan Monju. Ai Mrettu Upottaka, from the album Proshuner Jonno Prarthona, was released in the year 2017. The duration of the song is 5:20. Download Bengali songs online from JioSaavn.