India Bolsters the Siliguri Corridor: West Bengal Transfers Key Highways to Central Agencies

In a significant step towards enhancing strategic connectivity and infrastructure resilience, the West Bengal government has granted in-principle approval for the transfer of seven crucial stretches of national highways to central agencies. This decision is poised to accelerate development in the sensitive Siliguri Corridor, widely known as the “Chicken’s Neck,” a vital lifeline linking mainland India with its northeastern states.

The highways, previously under the state Public Works Department’s National Highways wing, will now be managed by the National Highways Authority of India (NHAI) and the National Highways & Infrastructure Development Corporation Limited (NHIDCL). This shift is expected to resolve administrative delays and enable faster progress on widening, strengthening, and repair works that had been pending for nearly a year.

Map showing the Chicken's Neck or the Siliguri Corridor (Image: News18) | Firstpost

Understanding the Siliguri Corridor

The Siliguri Corridor is a narrow strip of land in northern West Bengal, measuring approximately 20-22 kilometres at its narrowest point and stretching around 60 kilometres in length. It serves as the only terrestrial connection between mainland India and the eight northeastern states — Assam, Arunachal Pradesh, Meghalaya, Mizoram, Manipur, Nagaland, Tripura, and Sikkim — supporting a population of over 40-50 million people.

Flanked by Nepal and Bhutan to the north and west, Bangladesh to the south, and with China positioned beyond Sikkim to the north, the corridor holds immense military, logistical, and economic importance. Any disruption here, whether from natural calamities such as landslides and heavy monsoons or other contingencies, could isolate the Northeast from the rest of the country. Its strategic vulnerability has drawn attention particularly since the 2017 Doklam standoff, prompting sustained efforts to strengthen infrastructure and defence preparedness in the region.

Details of the Highway Transfer

Under the new arrangement, NHAI will take responsibility for key segments including NH-31 (from the Bihar-West Bengal border to Gazole), NH-33 (up to Farakka), and the extensive 329.6-kilometre NH-312 corridor, which connects Jangipur, Krishnagar, Bongaon, and Basirhat to Ghojadanga along the India-Bangladesh border.

Meanwhile, NHIDCL will oversee projects such as the Sevoke–Coronation Bridge–Kalimpong–Sikkim border route (NH-10), the Hasimara–Jaigaon stretch leading to the Indo-Bhutan border, the Changrabandha corridor near Bangladesh, and the Siliguri–Kurseong–Darjeeling hill road. Five of these seven stretches pass directly through the Siliguri Corridor, promising improved all-weather connectivity and resilience against seasonal disruptions.

Complementary Efforts to Strengthen the Region

This highway transfer forms part of a broader push to fortify North Bengal. The state government is also facilitating the handover of approximately 120 acres of land (with additional transfers in progress) to the Border Security Force for expedited border fencing along the India-Bangladesh frontier. On the railways front, plans are advancing for a 35.76-kilometre underground line between Dumdangi and Bagdogra to ensure secure, uninterrupted movement even during emergencies.

These initiatives align with national efforts to upgrade military and civilian infrastructure across the Northeast, including enhanced road networks, new bases, and projects aimed at improving trade, tourism, and logistical efficiency with neighbouring countries like Bhutan and Bangladesh.

The MGMM Outlook 

The decision to transfer key highway stretches in and around the Siliguri Corridor to central agencies reflects a sharper national focus on strengthening one of India’s most strategically sensitive regions. As the sole land link connecting mainland India with the Northeast, the corridor has long been both a logistical necessity and a strategic vulnerability. Bringing agencies like National Highways Authority of India and National Highways & Infrastructure Development Corporation Limited into direct control is likely to accelerate long-pending infrastructure upgrades, ensuring faster execution, better coordination, and stronger all-weather connectivity in a region where disruptions can have nationwide consequences.

Beyond road expansion, the broader infrastructure push — including border fencing, railway tunnelling, and improved connectivity toward neighbouring countries such as Bhutan and Bangladesh — signals a long-term strategic shift toward resilience and regional integration. Strengthening the “Chicken’s Neck” is not only about defence preparedness; it is equally about unlocking economic potential, supporting trade and mobility, and reinforcing India’s commitment to deeper development in the Northeast. This coordinated approach positions the region as a stronger bridge between security priorities and future growth.

(Sources: Firstpost, News18, Moneycontrol)