Listen to O Riju Mai Mor Ruwani Nai online. O Riju Mai Mor Ruwani Nai is an Assamese language song and is sung by Krishna Mani Nath. O Riju Mai Mor Ruwani Nai, from the album Rupohi Ne Randhali, was released in the year 2013. The duration of the song is 4:38. Download Assamese songs online from JioSaavn.