According to official sources here today, this was done in connection with the amended 1968 notification of the Ministry of Home Affairs Government of India issued on July 21, 2010, which came into force from August, 2010.
The Deputy Commissioner has informed all concerned that, as per the notification, every member of the hills' tribe, who is either an Indian citizen or a citizen of Myanmar and who is ordinarily resident of any area within sixteen kilometers on either side of India-Myanmar Border, entering India across the said boarder, shall be in possession of a valid permit issued by the authority of Government of India or the Myanmar government.