(1) On and from the appointed day,—
         (a) in the Advocates Act, 1961 (25 of 1961), in section 3 in sub-section (1), for clause (b), the following clause shall be substituted, namely:—
             "(b) for the States of Assam, Manipur, Meghalaya, Mizoram, Nagaland and Tripura and the Union territory of Arunachal Pradesh, to be known as the Bar Council of Assam, Nagaland, Meghalaya, Manipur, Tripura and Mizoram;"
         (b) the Bar Council of Assam, Nagaland, Meghalaya, Manipur and Tripua shall be deemed to be the Bar Council of Assam, Nagaland, Meghalaya, Manipur, Tripura and Mizoram
     (2) Any person who, immediately before the appointed day, is an advocate entitled to practise in the High Court of Assam, Nagaland, Meghalaya, Manipur and Tripura, shall be entitled to practise as an advocate in the common High Court.
     (3) All persons who, immediately, before the appointed day, are advocates on the roll of the Bar Council of Assam, Nagaland, Meghalaya, Manipur and Tripura, shall as from that day, become advocates on the roll of the Bar Council of Assam, Nagaland, Meghalaya, Manipur, Tripura and Mizoram.
     (4) The right of audience in the common High Court shall be regulated in accordance with the like principles as, immediately before the appointed day, are in force with respect to the right of audience in the High Court of Assam, Nagaland, Meghalaya, Manipur and Tripura:
     Provided that as among the Advocates-General of the States of Assam, Manipur, Meghalaya, Mizoram, Nagaland and Tripura, the right of audience shall be determined with reference to their dates of enrolment as advocates.