Have a look at this IRCTC Train Reservation Customer Care Phone Number or helpline no and you can get assistance by telling them your PNR no and the number is 14646 and see the instructions in the image wrt debit card or credit card as they will never ask for your personal bank informaton
Never take any customer care number by searching on the internet and instead search by going to that particular website by inputting the url
This is a correct number as screenshot taken from IRCTC website while booking a ticket.
Do remember to make use of our bank nifty option tips and be a part of the money making group.