1.Assam–Nagaland Border Dispute (Interstate Boundary)

What & Where
Dispute: Nagaland claims tracts inside Assam’s Golaghat, Jorhat, Sivasagar, Karbi Anglong districts
Core zone: 512 km Disputed Area Belt of reserved forests along the inter-state boundary
Fresh flare-up: Minority village in B Sector, Golaghat torched by alleged Naga miscreants
Quick Facts for MCQs
Historical Background
- 1826 Yandabo treaty began British administrative redraws without Naga consent
- 1866 Naga Hills District created; multiple 1875-1925 notifications shifted boundaries
- 1947 Naga independence declaration; 1957 Naga Hills-Tuensang Area Act preceded 1963 statehood
Commissions & Agreements
- Sundaram Commission 1972 produced four Interim Agreements maintaining status quo
- Shastri 1985, J K Pillai 1997, Variava & Chatterjee 2006 failed to secure permanent demarcation
- 16-Point Agreement 1960 cited by Nagaland for ancestral territory restoration
Disputed Area Belt
- Composition: Reserved Forests like Rengma, Diphu, Doyang, Intanki
- Governance: Both states barred from new settlements under status-quo pacts yet violations persistent
- Assam asserts legal boundary fixed at 1963 state creation
Security Dimension
- CRPF operates as neutral federal battalion under Union Ministry of Home Affairs
- Periodic skirmishes involve armed village councils, forest revenue staff, civilian militias
- August 2023 incident: ≈100 houses burnt, heightening inter-state tension
Key Data Points
| Feature | Data-Point |
|---|---|
| Inter-state boundary length | 512.1 km |
| Disputed Area Belt span | Reserved forests across 4 Assam districts |
| Neutral security force | CRPF deployed since 1979 |
| Claimed Assam land loss | ≈60,000 ha encroached (Assam claim) |
| Nagaland statehood formalised | Nagaland State Act 1962; effective 1963 |
| Key colonial trigger | Treaty of Yandabo 1826 |
| Latest violence location | B Sector, Golaghat district |
Related UPSC Prelims PYQs
असम राज्य क्रमशः कितने अन्य देशों और भारतीय राज्यों से सीमा साझा करता है ?
Which of the following State/s is/are common to Bru-Reang Agreement, NLFT (SD) Agreement and Tripartite Agreement with TIPRA?





