The judgement effectively ruled out any decision or appointment made at the meeting, in May of last year, after the amended constitution was accepted as illegal.
This included the appointment of Prime Minister 'Akilisi Pohiva as TRU President, with the positions of the Board, CEO and President declared void and the original version of the constitution to be recognised.
The former Tonga Rugby Union CEO, Fuka Kitekei'aho, said a new administration should be sorted by the end of the year.