Listen to Oi Nil Akash online. Oi Nil Akash is a Bengali language song and is sung by Muhammad Badruzzaman and Kalarab Shilpigosthi. Oi Nil Akash, from the album Oi Nil Akash, was released in the year 2021. The duration of the song is 3:24. Download Bengali songs online from JioSaavn.