Usually no RAC status to RLGN bookings..... for two intermediate stops.....
@ However thanks for bringing an example ...to the notice of RLGN progressed to RAC at charting. The example is RLGN tickets under RAC but from intermediate to destination station. Exceptions are always found in Rlys workings.
@ May be one more possibility of attachment of few bogies ex-Ernakulam to 2624/Chennai Mail (originating from Trivandrum Central).
@...
more... I have also yet to see PQWL under RAC.
Good wishes.