May 12 1862. Inaugural run. How? Till 30th June 1862 Madras Railway was 312 Miles, 90 Miles short of MAS-Beypore & 238 Miles shy of MAQ (Finished in 1907)!!
I hope its not a presumption and there must be some train's TT as back up which you link as progression of 46 long years gap of non existence of Through Train/Coach & Rail Network!! click here Tells in 1888 at 18:00 some train DEP MAS which was forerunner to 1 MAS-MAQ Mail!!
I show you non existence of Mail or Interclass Fare in...
more... Madras Railway when almost every Network had it in 1884!!
If its a presumption then Punjab/Calcutta/Nagpur Mail must start in 1858 as TT exist with Ordinary train ply till Vasind!! Either correct me or Timeline!!