Listen to Ek Chalar Rahasya online. Ek Chalar Rahasya is a Bengali language song and is sung by Pankaj Paul and Sayak Banerjee. Ek Chalar Rahasya, from the album Ek Chalar Rahasya, was released in the year 2022. The duration of the song is 4:07. Download Bengali songs online from JioSaavn.