The story behind introduction of tiolets in Trains

The (in)famous Jackfruit Letter - There is a very persistent legend
about a letter purportedly written by an irate railway passenger
suffering on account of the premature departure of a train. The letter
is claimed to have been written around 1909 (a precise date of July 2,
1909 is also sometimes claimed), addressed to the Divisional Office of
the East Indian Railway or the Transportation Superintendent at
Sahibganj, West Bengal, or to the Railway Board.

The letter is said to have been discovered in railway records in West
Bengal, or in the Railway Board's archives in New Delhi, or to have
been published in the August 1909 issue of 'Indian
Railways' (published by the Railway Board). It is very likely that
this letter is a legend or joke, even if it was reproduced in an
official publication. The text of the letter follows.

Dear Sir,

I am arrive by passenger train at Ahmedpore station, and my belly is
too much full of jack fruit. I am therefore went to privy, Just as I
doing the nuisance, that guard making whistle blow for train to go off
and I am running with lotah in one hand and dhotie in the next hand. I
am fall over and expose my shockings to man, females, woman on
platform. I am get leaved at Ahmedpore station.

This too much bad, if passenger go to make dung, that dam guard no
wait train 5 minutes for him. I am therefore pray your honour to make
big fine on that guard for public sake, otherwise I am making big
report to papers.

Your faithful servant,

Okhil Ch. Sen