Subject to the provisions of this Act, the law in force immediately before the appointed day with respect to practice and procedure in the High Court of Punjab shall, with the necessary modifications, apply in relation to the High Court of Delhi and accordingly the High Court of Delhi shall have all such powers to make rules and orders with respect to practice and procedure as are immediately before the appointed day exercisable by the High Court of Punjab and shall also have powers to make rules and orders with respect to practice and procedure for the exercise of its ordinary original civil jurisdiction:
     Provided that any rules or orders which are in force immediately before the appointed day with respect to practice and procedure in the High Court of Punjab shall, until varied or revoked by rules or orders made by the High Court of Delhi, apply with the necessary modifications in relation to practice and procedure in the High Court of Delhi as if made by that High Court.