Listen to Kumal Koi Bahore Gagana online. Kumal Koi Bahore Gagana is an Assamese language song and is sung by Uttam Sonowal. Kumal Koi Bahore Gagana, from the album Tumake Dekhu Priya, was released in the year 2011. The duration of the song is 4:32. Download Assamese songs online from JioSaavn.