Listen to Poo Mazhai Thoovi online. Poo Mazhai Thoovi is an Instrumental language song and is sung by M.K.S.Siva & Natarajan. Poo Mazhai Thoovi, from the album Marriage Songs Nadhaswaram, was released in the year 2000. The duration of the song is 9:33. Download Instrumental songs online from JioSaavn.