Listen to Ketoo Njan (Duet) online. Ketoo Njan (Duet) is a Malayalam language song and is sung by Sangeeta Prabhu and Najim Arshad. Ketoo Njan (Duet), from the album Life of Josutty, was released in the year 2015. The duration of the song is 5:13. Download Malayalam songs online from JioSaavn.