Listen to Nana Aar Katha Noy online. Nana Aar Katha Noy is a Bengali language song and is sung by Mou Mukherjee and Debjit. Nana Aar Katha Noy, from the album Katha Noy Mou Mukherjee, was released in the year 2002. The duration of the song is 4:33. Download Bengali songs online from JioSaavn.