7. On the appointed day all property, rights, powers, duties, obligations and liabilities vested in or to be discharged by the Internal Drainage Board under paragraph 6 of this Scheme in respect of the transferred area shall be vested in and discharged by the Denge and Southbrooks Internal Drainage Board: Provided that any dispute between the Internal Drainage Board and the Denge and Southbrooks Internal Drainage Board as to such transfer shall be referred to and decided by the Minister whose decision shall be final.