Nuvu chepindi correct.....bcz of RU they are running with 2 locos....But 2 locos are more helpful to keep less TAT at RU and MAS as per Tpty staff.
And Tpty is used by TN state people who comes for tirumala darshan....but RU is very imp station for this train especially telugu people who travel to putur and her nearby places.
The acual situation is different like other intercities....
It is something like local train for RU and other places nearby tpty and RU
Apart from these three trains garudadri,saptagiri and mas ICE other trains reroute is ok