This train was going via Krishnaraja Puram (KJM). Now, with the diversion via Madanapalle, Bangalore lost 4 days connection with Mumbai and Madurai/ Nagercoil.
Shorter route is PUNE GTL DMM KJM TPT SA NMKL KRR MDU TEN.
It's sibling via Renigunta can go via PUNE GTL RU TPTY KPD TNM VM TPJ MDU TEN.
No loco reversal anywhere. ...
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If via Madanapalle is diverted via KJM, other sibling going to TVC once a week can also go via SA KPD TPTY RU GTL.
SCR can run a good train from Tirupati or Nellore to Mumbai via RU TPTY PAK Madanapalle DMM GTL. If needed, this can go via BAY GDG SUR route.
SR can run a Trichy Mumbai train via TJ MV VM CGL AJJ BYPASS, RU GTL WADI SUR.
With one train route catering whole of south India creates lot of issues.