Context: The Mizoram government has sought the revision of the boundary with Assam, based on the Bengal Eastern Frontier Regulation (BEFR), 1873 and the Inner Line of the Lushai Hills Notification of 1993.
What is BEFR?
The BEFR allows Arunachal Pradesh, Manipur, Mizoram and Nagaland not to let non-resident Indians in without an inner-line permit for a temporary stay.
Key facts:
• Mizoram used to be the Lushai Hills district of Assam before being made a Union Territory in 1972 and a State in 1987.
• Mizoram shares a 123-km border with southern Assam and has been claiming a 509-square mile stretch “occupied” by the neighbouring State.