12567/68 राज्यरानी सुपरफास्ट की धाक राजधानी से कम नहीं है। - Prabhat Sharan

To Bangalore, only one SWR train is running via TPJ, SA, DPJ.
Why can't a SR daily overnight train via VM, KPD be run? Advantages would be
1. Distance less by 20 kms. (539 via SA TPJ, 519 via VM KPD)
2. Fully electrified route.
3....
more...

Connecting Sirkazhi, Vaitheeswaran Koil, Chidambaram, Cuddalore, Thiruvannamalai to Bangalore.
4. If this train is introduced, Mumbai Chalukya from Puducherry can be speeded up.
5. Journey time can be max 10 to 10-1/2 hours.

Train can have RSA with a new SBC TPJ daytime express, so that rake idling issues at Bangalore can be avoided.