@Gurubhai: Entry# 28555
RQWL is Remote Quota Waitling List not Request Quota Waitlist !!! You have been wrongly informed. This is used for intermediate stations on the train route...
PQWL is pooled quota waitlist which is quotas of nearby stations pooled together to form this list, that is smaller stations having small quotas, one/two/three each are pooled together to form this waitlist. ...
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The difference is RLWL is generally for 'major' stations having their own quota, and where people generally detrain and entrain on a regular basis. This is a SIMPLE EXPLANATION, NOT A TEHNICAL ONE BEFORE SOMEONE STARTS pushing me again ! Good wishes.