Listen to O Moromjan Tumar online. O Moromjan Tumar is an Assamese language song and is sung by Anupam Saikia and Bornali Kalita. O Moromjan Tumar, from the album Jaan Oi Jaan, was released in the year 1999. The duration of the song is 4:54. Download Assamese songs online from JioSaavn.