CK WL- is Tatkal waiting list- waiting will be cleared from CK quota and HO quota if available
GNWL- General waiting list - RAc permissible
PQWL- Pooled quota wait list where some berths are earmarked to be filled in on pooled basis that is by clubbing tickets.
RLWL- remote location it may or may not have RAC depending upon availability from originating station