Am wondering...what if there was a compilation of the maximum number of distinct trains traveled. So New Delhi to Chennai by GT Express, or TN Express or Shatabdi should all count, but only once. Of course, as always conditions should apply - and Indian Railway employees and their families should not participate. Nor should ticketless travelers :-)
I would expect traveling salespeople or couriers to at the top...but surely some rail fans would be there at the top of the list too?