On and from the appointed day, there shall be established a permanent bench of the High Court at Bombay at Panaji and such Judges of the High Court at Bombay, being not less than two in number, as the Chief Justice of that High Court may, from time to time, nominate, shall sit at Panaji in order to exercise the jurisdiction and power for the time being vested in that High Court in respect of cases arising in the Union territory of Goa, Daman and Diu:
     Provided that the Chief Justice of that High Court may, in his discretion order that any case or class of cases arising in such territory shall be heard at Bombay.