1. From the availability status it seems booking as such is restricted against this sector.
2. It may so have happened that some special berths may have been released way before chart preparation. Now since booking as such is restricted here, booking still ceases to be unavailable and the berths may only be available for #currentbooking and/or may be passed on to the next remote station during chart preparation and/or may be up to the TTE to deal with the said berth/s.
3. It may also happen that some special berths have...
more... been deliberately released or some manipulation has been done to facilitate booking against
#lowerberthquota and/or
#ladiesquota or a normal booking which is/are to be fully/partially confirmed during chart preparation by using special quota.