The boundary dispute between Assam and Mizoram dates back nearly 150 years. Boundary demarcations in 1875 and 1933, particularly the latter, are at the heart of the dispute. The 1933 boundary was made without consent and approval of government authorities and the people of Mizoram. The boundary dispute has simmered since Mizoram became a Union Territory in 1972 and then a state in the 1980s.
The dispute between Assam and Mizoram has recently escalated, as firing on the boundary left at least six Assam police dead and over 50 others injured.While Assam claims that its boundary has been transgressed, Mizoram cites unilateral moves by Assam inside its territory.
Following a meeting with Union Home Minister Amit Shah, Mizoram wants “the inter-state border issue with Assam be resolved in an atmosphere of peace and understanding". Twenty-four hours after the meeting, however, people are unable to travel through the border areas between Assam and Mizoram by vehicle. Mizoram blames Assam for blocking the road. According to Assam, Assam withdrew its travel advisory and nobody is being stopped from travelling to Mizoram.
Sources:
Deb, D. (2021). Explained: Why did a 150-year-old Assam-Mizoram dispute get violent now? The Indian Express. Retrieved 7 August 2021, from https://indianexpress.com/article/explained/the-assam-mizoram-dispute-violence-policemen-dead-7425600/.
Purkayastha, B. (2021). Bonhomie after Assam-Mizoram talks yet to reflect at border points. Hindustan Times. Retrieved 7 August 2021, from https://www.hindustantimes.com/india-news/bonhomie-after-assam-mizoram-talks-yet-to-reflect-at-border-points-101628280061118.html.