Do you know why we have toilets at all in Indian trains?

It happened very shortly after trains started running in India. The following heartrending and passionate letter from Shri Okhil Chandra Sen to the then boss of the railways, some white saheb in Allahabad or something, did the trick:

     Dear Sir (wrote Okhil in his anguish),

       I am arrive by passenger train at Ahmedpore station and my
     belly is too much swelling with jack fruit. I am therefore went
     to privy. Just 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 when I am fall over and expose all my
     shookings to man, female, women on platform. I am get leaved at
     Ahmedpore station.

       This too much bad, if passenger go to make dung, that dam guard
     no wait five 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.

       Yours faithful servant,

       OKHIL CH. SEN