This means Remote Location General Waitlist. Most likely, your journey on ticket starts from a station which is not the originating station for the train. Example, you have a train which starts from Delhi and goes to Bhopal. You book a ticket from a station like H.Nizamuddin . So, H.Nizamuddin will have a quota of X number of seats for this train. Once this gets filled up, you will be given a RLGN/RLWL kind of ticket. This will get confirmed, only if someone from That station cancels the ticket. Otherwise, you will have to wait for the chart to be prepared.