On and from the appointed day, in the First Schedule to the Constitution,—
         (a) under the heading "I. THE STATES",—
             (i) in the paragraph relating to the territories of the State of Assam, the following shall be added at the end, namely:—
                 "and the territories specified in sections 5, 6 and 7 of the North-Eastern Areas (Reorganisation) Act, 1971";
             (ii) after entry 18 the following entries shall be inserted, namely:—
             "19. Manipur The territory which immediately before the commencement of this Constitution was being administered as if it were a Chief Commissioner's Province under the name of Manipur.
             20. Tripura The territory which immediately before the commencement of this Constitution was being administered as if it were a Chief Commissioner's Province under the name of Tripura.
             21. Meghalaya The territories specified in section 5 of the North-Eastern Areas (Reorganisation) Act, 1971.";
         (b) under the heading "II. THE UNION TERRITORIES".—
             (i) entries 2 and 3 shall be omitted and entries 4 to 9 shall be re-numbered as entries 2 to 7 respectively;
             (ii) after entry 7 as so re-numbered, the following entries shall be inserted, namely:
             "8. Mizoram The territories specified in section 6 of the North-Eastern Areas (Reorganisation) Act, 1971.
             9. Arunachal The territories specified in section 7 of the North-Eastern Areas (Reorganisation) Act, 1971.".