Listen to Ki Chao Bolo (Duet) online. Ki Chao Bolo (Duet) is a Bengali language song and is sung by Progga Laboni and Bhaskor Bandopadhyay. Ki Chao Bolo (Duet), from the album Akash Aayna, was released in the year 2014. The duration of the song is 2:02. Download Bengali songs online from JioSaavn.