Listen to Brahamaputra Aaru online. Brahamaputra Aaru is an Assamese language song and is sung by Mahendra Hazarika and Jayanta Nath. Brahamaputra Aaru, from the album Swadesar Baatari, was released in the year 2000. The duration of the song is 3:59. Download Assamese songs online from JioSaavn.