Listen to O Mwnai online. O Mwnai is a Kokborok language song and is sung by Bimal Debbarma, Janardhan Debbarma and Subhadra Debbarma. O Mwnai, from the album Dida Di Dong, was released in the year 2010. The duration of the song is 4:27. Download Kokborok songs online from JioSaavn.