Listen to Duti Pran Ek Thnai online. Duti Pran Ek Thnai is a Bengali language song and is sung by Swagatalakshmi Dasgupta. Duti Pran Ek Thnai, from the album Ekla Gitabitan Vol. 13, was released in the year 2012. The duration of the song is 3:42. Download Bengali songs online from JioSaavn.