Listen to Oi Mahasindhur online. Oi Mahasindhur is a Bengali language song and is sung by Prasen and Dijendralal Roy. Oi Mahasindhur, from the album 9 No. Peara Bagan Lane, was released in the year 2016. The duration of the song is 2:10. Download Bengali songs online from JioSaavn.