If a male person knowing or having reason to believe that a carriage, compartment, berth or seat in a train or room or other place is reserved by a railway administration for the exclusive use of females, without lawful excuse,—

(a) enters such carriage, compartment, room or other place, or having entered such carriage, compartment, room or place, remains therein; or

(b) occupies any such berth or seat having been required by any railway servant to vacate it,