Listen to Onek Kosto Buke Amar online. Onek Kosto Buke Amar is a Bengali language song and is sung by Basudeb Rajbongshi. Onek Kosto Buke Amar, from the album Onek Kosto Buke Amar, was released in the year 2024. The duration of the song is 4:42. Download Bengali songs online from JioSaavn.