Listen to Kaaj Ki Ray Tor Kathin Sadhane online. Kaaj Ki Ray Tor Kathin Sadhane is a Bengali language song and is sung by Sanat Singha. Kaaj Ki Ray Tor Kathin Sadhane, from the album Omkarnath Geetimala, was released in the year 1996. The duration of the song is 3:10. Download Bengali songs online from JioSaavn.