India's Arunachal Frontier Highway (NH-913) — a strategic, roughly 1,700-km two-lane road running close to the Line of Actual Control (LAC) with China — continues to move forward in stages, with the Centre having sanctioned Rs 28,229 crore for the project overall and individual construction packages, such as a Rs 6,621.62-crore award covering 265.49 km across eight stretches, already under execution. But the highway's environmental cost has come into sharper focus over the past year: in July 2025, the Standing Committee of the National Board for Wildlife (NBWL) approved diverting 310 hectares of core forest land from the Namdapha Tiger Reserve for one highway stretch, a decision that will require felling approximately 1.55 lakh trees.
Background
The Frontier Highway concept dates to the early 2020s, driven by the Centre's push to improve rapid military mobility and logistics along the India-China border following the 2020 Galwan clash and subsequent border tensions. The road is designed to run as close as 20 km from the LAC in places, connecting roughly a dozen border districts of Arunachal Pradesh from Nafra in the northwest (near Tawang and West Kameng) down to Vijaynagar in Changlang district in the southeast, following the contour of the McMahon Line. Reported figures for the project's total length have varied across official statements and construction stages — from roughly 1,637 km to 1,748 km to as much as 1,840-2,500 km when counting additional feeder and inter-corridor roads — reflecting a project whose exact scope has been refined multiple times since it was first proposed. What has stayed consistent is its purpose: giving India's border security forces faster, more resilient movement between river valleys and forward posts than the existing road network allows, at a total estimated cost that different official statements have put anywhere from roughly Rs 27,000 crore to Rs 40,000-42,000 crore depending on which associated works are included.
The highway is being built by the Ministry of Road Transport and Highways (MoRTH) in nine packages, with the Border Roads Organisation (BRO) separately handling strategically sensitive stretches such as the roughly 198-km Tato-Tuting section in the state's Shi-Yomi and Upper Siang belt. In August 2025, a BRO Chief Engineer stated the Migging-Tuting stretch — with only about 15 km of formation cutting remaining at the time — was being targeted for completion by March 2026, weather permitting; no public confirmation of whether that target was met has surfaced since.
Key Details
- The Centre has sanctioned Rs 28,229 crore for the Arunachal Frontier Highway overall, connecting roughly 12 border districts and, by some counts, over 1,600 villages along the route.
- An early package, sanctioned in March 2024, covered 265.49 km across eight stretches — including the Huri-Taliha, Bile-Migging, Kharsang-Maio-Gandhigram-Vijaynagar and Bomdila-Nafra-Lada sections — for Rs 6,621.62 crore.
- Full project completion is officially targeted for March 31, 2029, per MoRTH's package-approval timeline.
- The NBWL's July 2025 approval covers 310 hectares of core Namdapha Tiger Reserve forest land in Changlang district — 248.79 hectares for road widening and 61.21 hectares for muck disposal — for a stretch connecting NH-215 near Kharsang to the Miao-Gandhigram-Vijaynagar road near the India-Myanmar border.
- Board members raised concerns during approval over the scale of tree felling and the absence, at the time, of a scientifically grounded wildlife mitigation plan for the stretch.
- As a condition of approval, the Wildlife Institute of India (WII) was tasked with preparing a site-specific animal passage plan — covering underpass and overpass design — within three months of the clearance.
At a Glance: Strategic Gain vs. Environmental Cost
| Dimension | Detail |
|---|---|
| Strategic rationale | Rapid troop/logistics movement within 20 km of LAC; connects river valleys and forward posts |
| Approximate route length | ~1,700 km (varies 1,637-1,840+ km across official statements) |
| Total sanctioned/estimated cost | Rs 28,229 crore sanctioned; ~Rs 40,000 crore full estimated cost incl. associated works |
| Forest land diverted (Namdapha stretch alone) | 310 hectares, core tiger reserve area |
| Trees to be felled (Namdapha stretch) | ~1.55 lakh |
| Mitigation requirement | WII animal passage plan, ordered July 2025 |
| Target full completion | March 31, 2029 |
Local Impact
For residents of Arunachal's border districts, the highway is bundled administratively with the Vibrant Villages Programme, under which the Centre has sanctioned over a hundred road projects and dozens of long-span bridges specifically to connect previously unlinked border villages with drinking water, electricity, mobile connectivity and healthcare infrastructure — meaning the Frontier Highway's civilian dividend, in villages along its route, could be substantial if delivered on schedule. Improved connectivity has also been linked by state officials to slowing outward migration from border areas and potentially encouraging reverse migration back to them, a long-standing demographic concern in Arunachal's remotest districts.
For the ecology of the Namdapha landscape — one of India's richest tiger reserves and among the few sites in the world confirmed to hold four big cat species (tiger, leopard, snow leopard and clouded leopard) — the felling of 1.55 lakh trees and fragmentation of core habitat represents a significant, largely irreversible cost, regardless of how effective the eventual WII-designed wildlife passages prove to be. The tension between border infrastructure needs and biodiversity protection is not unique to this stretch, but the scale of felling approved here is unusually large even by the standards of other Northeast India highway-through-forest projects.
What Happens Next
The Wildlife Institute of India's animal passage plan, ordered as a condition of the NBWL's July 2025 approval, would need to be completed, reviewed and incorporated into final engineering designs before tree-felling and construction proceed on the Namdapha stretch — no public confirmation of the plan's completion or its specific recommendations had surfaced as of this report. Separately, whether the BRO's March 2026 target for the Migging-Tuting/Tato-Tuting stretch was met remains unconfirmed publicly. The remaining MoRTH packages are expected to be tendered and constructed in phases through the 2029 target completion date, with further NBWL and forest clearance reviews likely required for other ecologically sensitive stretches along the route.
Frequently Asked Questions
What is the Arunachal Frontier Highway?
A strategic two-lane national highway (NH-913) running close to the India-China Line of Actual Control through Arunachal Pradesh, connecting roughly 12 border districts from Nafra to Vijaynagar, intended to improve military mobility and border-area civilian connectivity.
How much forest land has been approved for diversion in Namdapha Tiger Reserve?
310 hectares of core forest land, approved by the National Board for Wildlife's Standing Committee in July 2025, requiring the felling of approximately 1.55 lakh trees.
How much has the Centre sanctioned for the highway?
Rs 28,229 crore has been sanctioned overall, with individual packages such as a Rs 6,621.62-crore award for 265.49 km across eight stretches already under execution.
When is the Arunachal Frontier Highway expected to be completed?
MoRTH's package-approval timeline targets full completion by March 31, 2029, though individual BRO-built stretches carry their own, separate targets.
What wildlife mitigation measures are planned for the Namdapha stretch?
The Wildlife Institute of India was tasked, as a condition of the NBWL's approval, with preparing a site-specific animal passage plan covering underpass and overpass design within three months of the July 2025 clearance.
How does the highway connect to the Vibrant Villages Programme?
The Centre has sanctioned over a hundred road projects and dozens of long-span bridges under the Vibrant Villages Programme specifically to connect border villages along the highway corridor with essential infrastructure.
Why does the route length vary across different reports?
Official figures have ranged from roughly 1,637 km to 1,840 km or more depending on whether feeder roads and inter-corridor connections are included, reflecting a project scope that has been refined multiple times since inception.
What concerns did wildlife board members raise about the project?
Members flagged the scale of proposed tree felling and, at the time of approval, the lack of a scientifically grounded wildlife mitigation plan for the stretch running through Namdapha's core tiger habitat.
Sources
The Arunachal Times, Deccan Herald, Business Standard, The Week, Assam Tribune, EastMojo, Arunachal Observer, and Infra Info Hub.






