The State of Mizoram Act,1986
Section 15. Common High Court for Assam, Nagaland, Meghalaya, Manipur, Tripura and Mizoram
(1) On and from the appointed day,-
(a) There shall be a common High Court for the States of Assam, Nagaland, Meghalaya, Manipur, Tripura and Mizoram to be called the Gauhati High Court (the High Court of Assam, Nagaland, Meghalaya, Manipur, Tripura and Mizoram) (hereinafter referred to as the common High Court);
(b) The Judges of the High Court of Assam, Nagaland Meghalaya, Manipur and Tripura holding office immediately before that day shall, unless they have elected otherwise, become on that day the Judges of the common High Court.
(2) The expenditure in respect of the salaries and allowance of the Judges of the common High Court shall be allocated amongst the States of Assam, Manipur, Meghalaya, Mizoram, Nagaland and Tripura and the Union in such proportion as the President may, by order, determine.
