Listen to Perunnal Duet online. Perunnal Duet is a Malayalam language song and is sung by Najim Arshad and Anwesshaa Dattagupta. Perunnal Duet, from the album Enthaanu Khalbe - Malayalam Love Songs, was released in the year 2016. The duration of the song is 4:20. Download Malayalam songs online from JioSaavn.