Listen to Mazhavil Thundu online. Mazhavil Thundu is a Malayalam language song and is sung by Ratheesh Vega and Sanup. Mazhavil Thundu, from the album Njangalude Veettile Adhithikal (Original Motion Picture Soundtrack), was released in the year 2014. The duration of the song is 4:27. Download Malayalam songs online from JioSaavn.