High chances of trolling by SCR division, if this train reaches tirupati (tpty) after 18:00 (In case of reschedule and delays from SWR div).
Reason is SCR cannot find time slot to run it in Gudur - Vijayawada section in busy 19:00-21:00 hrs. It will be heavily trolled till Renigunta and will reach Gudur only after 21:30 IST. There are high chances on 3+ hour delays after GDR jn. when this train rescheduled from source station (YPR)