Which Indian state was involved in a boundary dispute with Assam in 2025?

The correct answer is Meghalaya . Key Points The boundary dispute between Assam and Meghalaya is a long-standing issue that traces back to 1972 , when Meghalaya was carved out of Assam under the North-Eastern Areas (Reorganisation) Act, 1971 . The two states share a border of approximately 884.9 km . The conflict primarily stems from Meghalaya 's challenge to the Assam Reorganisation (Meghalaya) Act, 1969 , which defined the boundaries of the new state. There are 12 areas of dispute along the border, including Upper Tarabari , Gazang reserve forest , Hahim , Langpih , Borduar , Boklapara , Nongwah , Matamur , Khanapara-Pilangkata , Deshdemoreah , Block I and Block II , and Khanduli-Psyar . In March 2022 , a historic Memorandum of Understanding (MoU) was signed between Assam Chief Minister Himanta Biswa Sarma and Meghalaya Chief Minister Conrad Sangma in the presence of Union Home Minister Amit Shah to resolve 6 out of the 12 points of dispute. The dispute reached significant legal and administrative milestones in 2024 and 2025 as both state governments intensified the second phase of border talks to address the remaining six complex sectors , involving regional committees and joint field visits . Hence, the correct answer is Meghalaya. Additional Information Constitutional Provisions: Under Article 3 of the Constitution of India , the Parliament has the power to form new states and alter the areas, boundaries, or names of existing states. This power is often exercised to address administrative needs or settle historical territorial claims. The North-Eastern Areas (Reorganisation) Act, 1971: This was a landmark Act of the Indian Parliament that led to the creation of the states of Manipur and Tripura , and the conversion of the Union Territories of Mizoram and Arunachal Pradesh . It also formally established Meghalaya as a full-fledged state, having previously been an autonomous state within Assam . Other Border Disputes in Northeast India: Assam-Mizoram: A major dispute involving the Inner Line Reserve Forest , which saw a violent clash in July 2021 resulting in the death of six Assam Police personnel . Assam-Arunachal Pradesh: A dispute involving over 1,200 villages . A significant Namsai Declaration was signed in 2022 to minimize the number of contested areas. Assam-Nagaland: The longest-running border dispute in the region, which began immediately after Nagaland achieved statehood in 1963 , involving tracts in the Brahmaputra Valley . Role of the Ministry of Home Affairs (MHA): The MHA acts as a facilitator in inter-state boundary disputes. While the Supreme Court has jurisdiction under Article 131 of the Constitution to decide on such disputes, the Union Government prefers settlements through mutual dialogue and regional committees . Important Points Survey of India: This is the national survey and mapping organization of the country under the Department of Science & Technology . It plays a critical role in demarcating boundaries and providing geospatial data to resolve state-level territorial conflicts. Criteria for Settlement: The recent Assam-Meghalaya resolution process used five principles : historical facts , ethnicity , administrative convenience , contiguity , and the willingness of the local population residing in the disputed areas. Status of Other Options: Himachal Pradesh: While it has minor territorial discussions with Ladakh (Sarchu) and Haryana (Parwanoo), it was not a primary party in the 2025 high-profile Assam border context. Sikkim: Shares international borders with China , Nepal , and Bhutan , but does not share a land border with Assam . Bihar: Primarily involved in flood management or occasional transit issues with Nepal or Uttar Pradesh , but not a border disputant with Assam .