Section 13(1)(a) in The State Of Nagaland Act, 1962
(a)there shall be a common High Court for the State of Assam and the State of Nagaland to be called the High Court of Assam and [Nagaland] [Inserted by North-Eastern Area (Reorganisation ) Act 81 of 1971, Section 28 (21-1-1972)] (hereinafter referred to as the common High Court);