Listen to Oi Bnashi Bajey online. Oi Bnashi Bajey is a Bengali language song and is sung by Manna Dey and Nirmala Mishra. Oi Bnashi Bajey, from the album Mother -Tagari -Preyasi - Father, was released in the year 1980. The duration of the song is 2:51. Download Bengali songs online from JioSaavn.