Listen to Kuphor Kagaj O online. Kuphor Kagaj O is a Kokborok language song and is sung by Bibha, Manudevi, Singer Usha, Gutam and Sanjita. Kuphor Kagaj O, from the album Oh Naithokti, was released in the year 2010. The duration of the song is 5:00. Download Kokborok songs online from JioSaavn.