Assam has formally restarted long-pending inter-state boundary negotiations on three separate fronts — with Arunachal Pradesh, Meghalaya and Nagaland — as regional committees headed by state ministers begin fresh rounds of consultation aimed at closing decades-old border disputes that have periodically triggered clashes, evacuations and diplomatic friction between neighbouring Northeast states.
Chief Minister Himanta Biswa Sarma's government has reconstituted committees to negotiate with Arunachal Pradesh over 52 remaining disputed villages, while a second phase of talks with Meghalaya covering six unresolved sectors is being lined up once demarcation of an earlier six-sector settlement is verified on the ground. Talks with Nagaland remain complicated by a boundary case that has sat before the Supreme Court since 1998.
Background
Assam shares boundaries with all the other seven states of the Northeast, and inherited most of its current disputes from post-Independence and post-reorganisation redrawing of state lines in the 1960s and 1970s, when Nagaland, Meghalaya, Mizoram and Arunachal Pradesh were carved out of what had been undivided Assam. Because many of these boundaries were drawn administratively rather than through detailed on-ground survey, forest, farmland and village boundaries have remained contested for generations, occasionally erupting into deadly violence — most notably the 2021 Assam-Mizoram border clash that killed six Assam police personnel.
Under Chief Minister Himanta Biswa Sarma, Assam has pursued a stated strategy of resolving these disputes sector by sector rather than attempting a single comprehensive settlement, arguing that incremental agreements build trust for harder remaining sectors. This approach produced a landmark result with Meghalaya in March 2022, when the two states signed a memorandum of understanding resolving six of twelve identified points of difference — Tarabari, Gizang, Hahim, Boklapara, Khanapara-Pilangkata and Ratacherra — covering roughly 36.79 square kilometres of previously disputed area.
A similar phased approach has applied to talks with Arunachal Pradesh, where the two states signed a pact in mid-2022 to resolve differences over villages claimed by Arunachal Pradesh along their shared boundary. Of 123 such villages originally in dispute, differences over 71 have since been resolved, according to Assam government statements, leaving 52 villages where negotiations are ongoing.
Key Details
The current round of activity follows a series of high-level meetings between Sarma and his counterparts in neighbouring states through 2026:
- Sarma and Meghalaya Chief Minister Conrad K. Sangma met in Guwahati in May 2026, with Sarma posting on X that the two leaders had made "good progress on long-standing issues" during the meeting at Lok Sewa Bhawan.
- Sarma has said publicly that the second phase of Assam-Meghalaya boundary talks — covering the sectors of Langpih, Borduar, Deshdoomreah, Block I and II, Psiar-Khanduli, and Nongwah-Mawtamur — will begin only after the Survey of India completes demarcation of the six sectors already settled in the 2022 MoU, tying the pace of new talks to verification of the old agreement rather than a fixed calendar.
- Meghalaya's regional committees, according to Sangma, have been reconstituted to engage with stakeholders in the six remaining sectors, assess ground realities through joint inspections, and submit recommendations before formal negotiations resume.
- On the Arunachal Pradesh front, both states have constituted twelve regional committees in total — six on each side, headed by ministers — that have jointly toured disputed areas and held consultations with local stakeholders in the 52 remaining villages.
- Sarma and Arunachal Pradesh Chief Minister Pema Khandu have both publicly reaffirmed what Sarma has called the two states' "brotherhood," with Sarma stating Assam does "not want conflict with Arunachal" and urging a cooperative resolution process over the remaining villages.
- Talks with Nagaland remain the most legally constrained of the three: Assam approached the Supreme Court in 1998 over the boundary, and with the matter still sub judice, officials on both sides have indicated that a full negotiated settlement is difficult to conclude outside the court process, even as informal contact between the two governments continues.
At a Glance
| Neighbouring State | Total Disputed Points/Villages | Resolved So Far | Current Status |
|---|---|---|---|
| Meghalaya | 12 sectors | 6 sectors (March 2022 MoU) | Phase 2 (6 sectors) pending Survey of India demarcation of Phase 1 |
| Arunachal Pradesh | 123 villages claimed | 71 villages | 52 villages under regional committee negotiation |
| Nagaland | Boundary dispute since 1963 reorganisation | Not resolved | Sub judice before Supreme Court since 1998; informal dialogue continues |
Local Impact
For residents of villages in the disputed sectors — many of them in remote, forested stretches of the Assam-Meghalaya and Assam-Arunachal borders — the practical stakes are immediate: which state administers their land records, which police jurisdiction covers their village, which state government's welfare schemes and school boards they fall under, and who has authority over forest and mining resources in contested tracts. Unresolved boundaries have historically meant duplicate or absent government services, contested land pattas, and periodic tension between security forces and residents from either side.
Border trade and connectivity in these areas is also affected. Villages in limbo between two state administrations often see slower road, power and healthcare infrastructure rollout, since neither state government treats them as an unambiguous funding priority. A durable settlement — even a partial one covering a handful of sectors — typically triggers a wave of catch-up infrastructure spending once jurisdiction is finally settled, as happened in some of the sectors resolved under the 2022 Meghalaya MoU.
For the wider Northeast, the pattern of incremental, minister-led committee negotiations rather than court battles or unilateral administrative action is also being watched as a template: Assam borders every other Northeastern state except Sikkim, and how it handles these three parallel negotiations will likely shape how other neighbouring pairs — Meghalaya-Mizoram, or Nagaland-Manipur, for instance — approach their own unresolved boundaries.
What Happens Next
The most immediate next step is the Survey of India's on-ground demarcation of the six Assam-Meghalaya sectors settled in 2022; Sarma has explicitly linked the start of second-phase talks to completion of that verification, so its timeline will determine when substantive negotiations on Langpih, Borduar and the other four sectors can begin. Meghalaya's regional committees are expected to complete their fresh round of stakeholder consultations and submit recommendations to the state government as a precondition for that phase.
With Arunachal Pradesh, the twelve ministerial-level regional committees are expected to begin a fresh round of negotiations over the 52 remaining villages, building on the 71 already resolved since the 2022 pact; no public deadline has been set for concluding this phase. The Nagaland dispute is expected to remain largely governed by the pace of the Supreme Court case rather than direct political negotiation, though both state governments have signalled continued informal contact in the meantime.
Frequently Asked Questions
Why does Assam have border disputes with so many neighbouring states?
Nagaland, Meghalaya, Mizoram and Arunachal Pradesh were all carved out of undivided Assam between the 1960s and 1987. Many of the resulting boundaries were drawn administratively rather than through detailed ground survey, leaving forest tracts, farmland and village jurisdictions ambiguous in numerous stretches — disputes that have persisted for decades.
What was resolved in the 2022 Assam-Meghalaya agreement?
In March 2022, Assam and Meghalaya signed an MoU settling six of twelve identified points of difference — Tarabari, Gizang, Hahim, Boklapara, Khanapara-Pilangkata and Ratacherra — covering about 36.79 square kilometres. Six sectors remain unresolved: Langpih, Borduar, Deshdoomreah, Block I and II, Psiar-Khanduli, and Nongwah-Mawtamur.
Why hasn't the second phase of Assam-Meghalaya talks started yet?
Chief Minister Himanta Biswa Sarma has said Assam wants Survey of India demarcation of the first six sectors verified on the ground before opening negotiations on the remaining six, tying the pace of new talks to confirmation of the earlier agreement.
How many villages are in dispute between Assam and Arunachal Pradesh?
Of 123 villages originally claimed by Arunachal Pradesh along the shared boundary, differences over 71 have been resolved since a 2022 pact between the two states; 52 villages remain under active negotiation through twelve ministerial-level regional committees.
What is the status of the Assam-Nagaland border dispute?
It is the most legally complex of Assam's three active border disputes. Assam approached the Supreme Court over the matter in 1998, and with the case still pending (sub judice), officials on both sides have said a complete negotiated settlement outside the court process is difficult, though informal dialogue between the two governments continues.
Has there been violence linked to these border disputes before?
Yes. Assam's border disputes with neighbouring states have periodically escalated, most seriously in the 2021 Assam-Mizoram border clash near Vairengte/Lailapur that killed six Assam police personnel. Assam-Meghalaya border areas have also seen intermittent standoffs, including tension near Jorabat.
Who leads the regional committees negotiating these disputes?
On both the Meghalaya and Arunachal Pradesh fronts, the committees are headed by ministers from the respective state governments, who conduct joint inspections of disputed sectors, hold consultations with local stakeholders, and submit recommendations to their chief ministers.
What would residents in disputed sectors gain from a settlement?
Clear administrative jurisdiction typically resolves ambiguity over land records, policing authority, school board affiliation and eligibility for state welfare schemes, and tends to be followed by increased infrastructure investment as the newly confirmed administering state treats the area as an unambiguous funding priority.
Sources
The Sentinel Assam, The Assam Tribune, Northeast News (nenews.in), Deccan Herald, The Arunachal Times, Vajiram & Ravi Current Affairs.