Listen to O De Gayo Kagad Postman online. O De Gayo Kagad Postman is a Rajasthani language song and is sung by Seema Mishra and Nirmal Mishra. O De Gayo Kagad Postman, from the album Chandani Raat, was released in the year 2003. The duration of the song is 5:33. Download Rajasthani songs online from JioSaavn.