Listen to Thenni Thenni online. Thenni Thenni is a Malayalam language song and is sung by A.T. Ummer and S. Janaki. Thenni Thenni, from the album S. Janaki - Haunting Melodies, was released in the year 2007. The duration of the song is 4:10. Download Malayalam songs online from JioSaavn.