Kolkata Trade Routes Await Stronger Northeast Link
A proposed second bridge over the Teesta at Sevoke in north Bengal has entered a fresh tendering phase after the earlier process was cancelled, putting a key piece of the region’s transport network back under scrutiny. The project matters beyond Darjeeling: the NH-10 corridor is an important route towards Sikkim and the wider Northeast, with implications for movement of people, goods and tourism from Kolkata and other eastern markets.
The original tender, issued in January 2026, valued the bridge and its approaches at about ₹840.29 crore. The National Highways Authority of India (NHAI) later cancelled the process, citing administrative reasons without publicly detailing the specific cause. The cancellation created uncertainty around a project intended to provide an alternative to the ageing Coronation Bridge across the Teesta.That uncertainty has since eased, although the project has changed. A fresh tender issued in August proposes a six-lane bridge and approach roads with a combined length of around 6.85km. The estimated cost is now about ₹844 crore. The expansion from the earlier four-lane proposal reflects revised expectations of future traffic and the strategic importance of the corridor.For Kolkata, the significance is less about the bridge itself and more about the resilience of the eastern region’s wider logistics network. NH-10 connects the Siliguri area with Sikkim and passes through terrain that is vulnerable to landslides, erosion and extreme weather. Disruptions can increase travel times, raise freight costs and affect access to essential supplies and tourism-dependent businesses.
The corridor has also faced added pressure following severe weather events in the Teesta basin. The 2023 glacial lake outburst flood damaged infrastructure and disrupted NH-10, highlighting the risks of relying heavily on a single mountain transport route. In July 2026, authorities in West Bengal and Sikkim also discussed scientific sediment management along the Teesta as part of broader efforts to improve connectivity.This makes Kolkata Northeast connectivity increasingly dependent on infrastructure that is not only larger, but more resilient. A second bridge could provide network redundancy, reducing the consequences of failures on the existing crossing. However, construction in a fragile Himalayan river landscape will require careful assessment of flood behaviour, river morphology, slope stability and ecological impacts.
For Kolkata Northeast connectivity, the next test is therefore not simply whether the bridge is awarded. It is whether the redesigned project can move from tendering to construction without further delays while delivering safer, climate-resilient access for communities, freight operators and travellers across eastern India.
