Listen to Ko Tum Ko Tum Bolo online. Ko Tum Ko Tum Bolo is a Hindi language song and is sung by Parul Ghosh and K.C. Dey. Ko Tum Ko Tum Bolo, from the album Devdasi, was released in the year 1945. The duration of the song is 3:08. Download Hindi songs online from JioSaavn.