IRTTC ?
IRTTC agenda is restricted to introduction of new trains, extension/diversion/short termination of existing trains, time table discussion etc.
Existing train's reservation quota allocations are not part of IRTTC agenda. Quota allocation...
more... is done by train originating zone. Periodical review of reservation quota is to be done by respective zone, duly carrying out PPM (Passenger Profile Management) analysis. Enroute zone's doesn't have any role in this quota allocation activity.