Listen to Aar Kotokal Thakbo Bose online. Aar Kotokal Thakbo Bose is a Bengali language song and is sung by Anup Ghoshal. Aar Kotokal Thakbo Bose, from the album Prarthana, was released in the year 2020. The duration of the song is 5:24. Download Bengali songs online from JioSaavn.