The spur to Sangli must have been constructed much later. This MG line was later abandoned and the alignment was changed when BG came in 1971.

Dudh Sagar station did have scheduled stops in those days. Also, Castle Rock handled Customs and Immigration, yet the scheduled halts are only 30 - 40 minutes.

Confirms the fact that the "Main line" went upto Dhanushkodi. Rameswaram was on a branch line.

The entire Kulasekharapatnam Light railway is seen here, together with a Udangudi branch which has been cut off while scanning. Was this part of a original plan to connect Tiruchendur with Kanyakumari?

The entire Punalur - Shencottah section is marked as a Ghat section. Were bankers used in this entire section during steam days?

Not much change it timings between 1931 and today for the two trains 23/ 24 Express (today's 2609/ 2610) and 7/8 Mail (today's 2657/ 2658).

Yes there was. The line was closed to passenger traffic some years ago. Incidentally Royapuram - Walajah Road - Arcot was the first railway line to be opened in South India on 1st July 1856.

In 1931 too, as it is today, services ran only upto Agastiyampalli. Or was the line to Koddikarai (Point Calimere) constructed at a later date?

There is only one Express train at night time. Compare with today's traffic with innumerable halts for crossings on a single line at night. And what does D.S.Y. stand for?

Olavvakot (today's Palakkad Jn.) to Palghat Jn. (today's Palakkad Town) used to have both BG and MG services.