The train runs with a combined rake from Puri till Sambalpur Junction. At Sambalpur, the train is uncoupled into 2 parts. One part goes to Hatia, and the other part to Rayagada. On the return journey, both the trains arrive at Sambalpur Junction, and are coupled together, and then again run as a combined train till Puri..... Hope I am able to clarify your doubt...