Listen to O Mui Ki Biyai online. O Mui Ki Biyai is an Assamese language song and is sung by Rahima Begam Kalita. O Mui Ki Biyai, from the album Hits Of Rahima Begam Kalita, was released in the year 2015. The duration of the song is 4:00. Download Assamese songs online from JioSaavn.