One such act passed on 11 September 1958 was applicable to the Naga Hills, then part of Assam. In the following decades it spread, one by one, to the other Seven Sister States in India's northeast (at present, it is in force in the States of Assam, Nagaland, Manipur {excluding Imphal Municipal Council Area}, Changlang, Longding and Tirap districts of Arunachal Pradesh, and areas falling within the jurisdiction of the eight police stations of districts in Arunachal Pradesh bordering the State of Assam). Another one passed in 1983 and applicable to Punjab and Chandigarh was withdrawn in 1997, roughly 14 years after it came to force. An act passed in 1990 was applied to Jammu and Kashmir and has been in force since.
