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 Baisakh, was released in the year 2023. The duration of the song is 1:46. Download Bengali songs online from JioSaavn.