Now in BG it is possible in shorter way.
1. Palani-Dindigul-Salem-Bangalore - 435KM (200KM saved because of BG) Possible in 9hrs... 43% time saving.
Once PLNI-PGT line is opened
2. Palani-Palghat-Ernakulam - 270KM (200KM saved because of BG) possible in 5.5hrs - nearly 50% time saving.
IMHO,...
more... SR should introduce a over nighter to Ernakulam from Rameshwaram via Madurai, Palani, Pollachi, Palghat.
Lot of people from KL visits Palani.