Listen to Kothopokothon 4 online. Kothopokothon 4 is a Bengali language song and is sung by Sarwar Nayeem and Rubayet Shahrin. Kothopokothon 4, from the album Valobashe Amal Balika, was released in the year 2017. The duration of the song is 3:13. Download Bengali songs online from JioSaavn.