Listen to Om Mangalam online. Om Mangalam is a Bengali language song and is sung by Robin Das, Alpona Das, Protibha Roy, Swapna Choudhury and Amitava Chowdhury. Om Mangalam, from the album Surer Guru, was released in the year 2016. The duration of the song is 2:04. Download Bengali songs online from JioSaavn.