Listen to Monawa Kalath Oya online. Monawa Kalath Oya is a Sinhalese language song and is sung by Kalana Heshan. Monawa Kalath Oya, from the album Sinhala Song Mix, Vol. 3 (Original), was released in the year 2022. The duration of the song is 3:58. Download Sinhalese songs online from JioSaavn.