That is why extensions are such a sham and so detrimental to the original station in the first place. BKSC is allocated PQWL in 13351 that was it's own train once.
RNC Division has cut off BKSC from several of it's train inspite of the fact that both lie in SER, because the divisional changeover is there. MURI lies in RNC Division and leaps the benefits of GNWL there.
Similarly ASN is now facing the RLWL axe on several trains originating from KOAA side.
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That is why I was originally sympathetic to the guy from MLDT when Farakkha got extended. While MLDT retains GNWL as of now, it is likely to be discarded from the next ARP, as zonal changeover is there.