Subject to the rules made under this Act, the Board of each Major Port shall be entitled to create specific master plan in respect of any development or infrastructure established or proposed to be established within the port limits and the land appurtenant thereto and such master plan shall be independent of any local or State Government regulations of any authority whatsoever:
    Provided that in case of any conflict between the master plan created by the Board and any local authority, the master plan created by the Board shall prevail.