Listen to Oi Mahamanob Ase online. Oi Mahamanob Ase is a Bengali language song and is sung by Manoj Murali Nair. Oi Mahamanob Ase, from the album 25she Boishakh, was released in the year 2025. The duration of the song is 1:45. Download Bengali songs online from JioSaavn.