I think railways should go away with this zonal system in operating. As told by experts operation should come under one body. Also may issues for TT is due no Pitlines and less PF. If railways can increase that infra. Many things will sorted out.
ECoR has many rakes , they can easily run a non AC train on sunday from Vizag to SC.
This can start at Saturday morning 5:30 SC 4:30 at SHM. Again start at SUN SHM 8:15 and 7:15 am Monday.
LHB...
more... train should do in 23 hrs. But only issue many times they say is PIT LINES and Less PF.