Northeast Rail Links Six New Districts on Broad Gauge
The Railway Minister inaugurated 412 km of new lines across Arunachal Pradesh and Nagaland built in seismic terrain.
At a ceremony in Itanagar, the Railway Minister commissioned 412 kilometres of new broad gauge rail lines across Arunachal Pradesh and Nagaland. Built under the Northeast Special Infrastructure Development Scheme for ₹18,400 crore, the lines bring six previously unconnected districts into the national railway network for the first time since Independence.
Key Highlights
- 412 km of new broad gauge lines inaugurated.
- Six districts connected to the national network for the first time.
- Built for ₹18,400 crore in seismic, landslide-prone terrain.
- Bhalukpong-Naharlagun corridor links Arunachal's capital to the Assam grid.
- Eight wildlife underpasses added along elephant corridors.
The Centrepiece Corridor
The Bhalukpong-Naharlagun corridor gives Arunachal's capital a direct rail link to the Assam grid and, beyond it, Kolkata and the national network. It runs through four mountain tunnels — the longest at 6.4 km, the longest rail tunnel in the northeast outside Sikkim — and required managing seven rivers and 23 seasonal streams.
Project at a glance
| Detail | Fact |
|---|---|
| New track | 412 km |
| Cost | ₹18,400 crore |
| Districts connected | Six (first time) |
| Longest tunnel | 6.4 km |
| Wildlife underpasses | Eight |
Engineering in Seismic Zones
Both states sit in seismic zones IV and V, so all bridges, tunnels and viaducts were designed to withstand earthquakes of magnitude 8 or above. Monsoon landslides forced mid-construction rerouting of several sections after surveys found unstable slopes. The Wildlife Institute of India studied elephant corridors, and the alignment includes eight dedicated underpasses at regular crossing points.
Economic and Strategic Significance
Rail cuts transport costs for farm produce, livestock and handicrafts, linking districts to markets in Guwahati and Kolkata once reachable only by road — journeys that could take days during monsoon closures. Strategically, border-area rail is a logistics force multiplier; some stations are designed for dual civil-military use.
Arunachal Chief Minister Pema Khandu called it a “transformational moment,” while Nagaland pressed to fast-track the Dimapur-Kohima corridor study — part of the same connectivity drive as the Ganga Expressway and rural housing push.
Frequently Asked Questions
How much new track was inaugurated?
412 kilometres across Arunachal Pradesh and Nagaland.
Why is the project historic?
Six districts joined the national rail network for the first time since Independence.
What engineering challenges were involved?
Seismic zones IV and V, monsoon landslides and long mountain tunnels.
How was wildlife protected?
Eight dedicated underpasses were built along mapped elephant corridors.
What is the strategic value?
Border rail improves logistics, and some stations support dual civil-military use.
Sources
- Ministry of Railways — inauguration briefing
- Northeast Special Infrastructure Development Scheme