It is a record in the Indian Railways database that stores the journey details for a passenger or a group of passengers. The Centre for Railway Information Systems (CRIS) also keeps track of information such as passengers' current PNR status, availability of berths in all classes for the next 60 days, and static inquiries such as Train Between Important Stations, Reservations Rules, Fares, Refund, and Rules, and so on
The PNR number is typically printed in the upper left corner of printed tickets. The E-Ticket is mentioned at the top in a separate cell. Passengers' personal information, such as name, age, gender, and so on, is saved in the database in conjunction with this reference number. It has columns for storing the booking status and the current status of the ticket.
Because every train has a limited number of seats, it is possible that you will not receive a confirmed reserved ticket. When there is any availability of reserved seats due to cancellation, the current status of such a waitlist (W/L) ticket changes. PNR live status gives all the details in real-time to help you make informed decisions while booking IRCTC train tickets online.