Listen to Khumni Bubar online. Khumni Bubar is a Kokborok language song and is sung by Bibha, Manudevi, Usha, Gutam and Sanjita. Khumni Bubar, from the album Risa, was released in the year 2010. The duration of the song is 5:14. Download Kokborok songs online from JioSaavn.