Thanks! I wasn't sure of that. All the sources I checked had it as SC-GNT, but one or two had it as Hyderabad-Vijayawada. I presumed the two cities were just mentioned casually to indicate connectivity and not as the exact terminals. Thanks for providing the additional info!
I do remember seeing it as HYB-TPTY. We used to cross it while traveling by Gautami in both directions.