It's highly imposible RSA. Since Garudadri has huge rush and that too peak time on both sides.
GNT - TPTY - GNT Exp has 15coacher
Meanwhile, Garudadri is a 22coacher these 22coacher is also insufficient for sometimes. RSA can be done with some other express trains Viz TPTY - PURI/BSP - TPTY Exp.