GNWL=> Start-end/ Start-intermediate (In some rare cases where the intermediate station falls within the same cluster/same state as that of the originating station and serves as a big city/important station; like Hwh/NDLS/CSTM and so on). This is the quota maintained at the originating station/originating cluster of stations and is mainly applicable for start-end passengers. A part of this quota is often distributed amongst the intermediate/remote stations which enables the latter to support RAC (Due to the increased number of quota).
For PQWL, kindly go here:
/faq, type "PQWL" in the search box and check for the desired information/s.