The law in force immediately before the commencement of the North-Eastern Areas (Reorganisation) and Other Related Laws (Amendment) Act, 2012 with respect to practice and procedure in the common High Court shall, with necessary modifications, apply in relation to the High Court of Meghalaya, the High Court of Manipur and the High Court of Tripura, and accordingly, the High Court of Meghalaya, the High Court of Manipur and the High Court of Tripura shall, respectively, have all such powers to make rules and orders with respect to practice and procedure as are immediately before the commencement of the North-Eastern Areas (Reorganisation) and Other Related Laws (Amendment) Act, 2012 exercisable by the common High Court:
     Provided that any rules or orders which are in force immediately before the commencement of the North-Eastern Areas (Reorganisation) and Other Related Laws (Amendment) Act, 2012 with respect to the practice and procedure in the common High Court shall, until varied or revoked by rules or orders made by the High Court of Meghalaya or the High Court of Manipur or the High Court of Tripura, as the case may be, apply with the necessary modifications in relation to the practice and procedure in the High Court of Meghalaya, the High Court of Manipur and the High Court of Tripura respectively, as if such rules or orders were made by the respective High Court.