Listen to Postadaanar Saathe online. Postadaanar Saathe is a Bengali language song and is sung by Swapna Chakraborty and Arup Ghoshdastidar. Postadaanar Saathe, from the album E Kemon Bichhar Bidhi, was released in the year 1989. The duration of the song is 3:14. Download Bengali songs online from JioSaavn.