Listen to Nwtwm De Nwtwm online. Nwtwm De Nwtwm is an Assamese language song and is sung by Barnali Kalita. Nwtwm De Nwtwm, from the album Simbuk -Rabha Songs, was released in the year 2018. The duration of the song is 5:27. Download Assamese songs online from JioSaavn.