Listen to Oi Asantaler-Raj-Rup online. Oi Asantaler-Raj-Rup is a Bengali language song and is sung by Rajsirsha Das and Rabindranath Tagore. Oi Asantaler-Raj-Rup, from the album Ratanhar, was released in the year 2015. The duration of the song is 3:33. Download Bengali songs online from JioSaavn.