With 515 dep it has to overtake one train HWH SVMT if delayed by an hour it should overtake 3 trains. The slack ftom VZM to Vskp can be cut by 15 mins.
For Andhra Pradesh people the pilgrimage places are Annavaram, Vijayawada and Tirupati. Only SKLM dts and Bherhampur people have intrest in Puri or do annual pilgrimage. So premium train is not needed that too I'm reverse direction leaving Puri early morning 515.