In 1971 Census of India, the Tribal population was at 65%, as of 2011, it stand at 56.3% with large numbers of illegal influx and encroachment from outside causing disturbance to both natural landscape & economic opportunities. Illegal issuance of land patta is also the major concern for the Indigenous tribal communities. The Karbi Anglong Autonomous Council, the Land Revenue and the Forest department of Karbi Anglong aided by Police and Executive Magistrate on 5 March 2019 demolished and evicted over 600 illegal structures and infiltrators built in Lankaijan Reserve Forest bordering Hojai district. On 31, August 10:00 am (Indian Standard Time) the much awaited National Register of Citizens of India (Assam) was declared. 19,06,657 were excluded out of 3.11 Crore people from all over Assam. According to many news reports, both from Karbi Anglong (10th position) & West Karbi Anglong district (7th position) 14.31% & 15.47% of people were excluded from these respective areas'