What is RLWL, RSWL, RQWL, RLGN on railway ticket

GNWL: General Waiting List (GNWL) waitlisted tickets are issued  when the passenger begins his/her journey at the originating station of a  route or stations close to the originating station. This is most common  type of waiting list and has got the highest chances of confirmation.
RLWL: Remote Location Waiting List (RLWL) means ticket is issued  for intermediate stations (between the