Avoid train station scams in India with those tips
Types of scams:
there will be people pretending to be station staff and tell you the ticket window for foreigners are closed today;
or offer to help you to buy tickets but change your tickets to a lower tier;
or tell you the last train to your destination has left and offer/suggest you to book a car;
or tell you right before the train leaves that you need to buy a Foreigner Boarding Pass from Foreigner Service Centre but you won't make the train or the service centre is closed today, so you should take a minibus
book your tickets online, or buy tickets in person at government certified counters, ignore strangers to offer to "help"
As a foreigner, all you need is your passport and visa to board the train, no so-called boarding pass needed