PNR stands for Passenger Name Record is a 10 digit number that is indicated on the upper left corner of an Indian railway ticket. This is the record of travel of a passenger or group of passengers that is indicated in the database of CRS or Computer Reservation System.
PNR ticket which include the confirmation, modification or cancellation of the booking ticket helps passenger to make their itinerary comfortable.


Know more here -
PNR Service - http://www.travelkhana.com/travelkhana/check-pnr-status