Listen to Oka Aatu Sound online. Oka Aatu Sound is a Santali language song and is sung by Krishna Besra and Damkom Bayar Deepak Babu. Oka Aatu Sound, from the album Oka Aatu Sound, was released in the year 2024. The duration of the song is 4:19. Download Santali songs online from JioSaavn.