With JJ getting terminated at Pune, Katpadi lost its only daily connection to Mumbai. Odd time PDY Chalukya (triweekly) is definitely not meant for KPD. Can we have a train from Mumbai to Pondicherry / Karaikal via Katpadi. Two routes suggested:
Hubli Guntakal Dharmavaram Katpadi Tiruvannamalai Villupuram or
Solapur, Kalaburgi, Guntakal, Dharmavaram Tiruvannamalai Villupuram.