Listen to Kalpotoru Mule Chalo online. Kalpotoru Mule Chalo is a Bengali language song and is sung by Raghab Chattopadhyay. Kalpotoru Mule Chalo, from the album Kalpotoru Mule Chalo, was released in the year 2019. The duration of the song is 3:37. Download Bengali songs online from JioSaavn.