World’s Longest Bi-Lane Sela Tunnel: Several Facts About Sela Tunnel You Should Know

World's Longest Bi-Lane Sela Tunnelvia

In a historic moment, Prime Minister Narendra Modi inaugurated the Bi-Lane Sela Tunnel, a milestone under the ‘Atmanirbhar Bharat’ initiative. This tunnel ensures year-round access to Tawang and China-bordering areas, promising transformative changes for Arunachal Pradesh. It marks a crucial step in enhancing regional connectivity. The Bi-Lane Sela Tunnel signifies progress and accessibility throughout the year.


Revolutionizing Connectivity At 13,000 Feet With Bi-Lane Sela Tunnel

Sela Tunnel Arunachal

Constructed in the West Kameng district, the Bi-Lane Sela Tunnel holds the title of the world’s longest bi-lane tunnel. Perched at an altitude surpassing 13,000 feet, it is an engineering marvel. This tunnel guarantees all-weather connectivity between Assam and Tawang in Arunachal Pradesh. It adeptly overcomes the challenges presented by harsh and extreme weather conditions.


Key Features

Sela Tunnel Arunachal Pradesh

Excavated below the formidable Sela Pass on NH-13, the tunnel comprises two sections. Tunnel 1 is a 980-meter-long single-tube marvel, while Tunnel 2 is an impressive twin-tube structure exceeding 1.5 kilometers. Thanks to the Border Roads Organisation’s (BRO) meticulous execution under Project Vartak, commuters will now bypass the perilous snow-covered Sela top at 13,700 feet.


Strategic Foundations And Rapid Progress Of Bi-Lane Sela Tunnel

Launched in February 2019 by Prime Minister Modi, the project, estimated at Rs. 697 crore, saw its first blast at Tunnel 2’s Portal 4 on October 31, 2019. Under the ‘Atmanirbhar Bharat’ initiative, the Bi-Lane exemplifies rapid construction and technological prowess. It promises to redefine travel and connectivity in the region.


Gateway To Tawang’s Timeless Beauty Connected By Bi-Lane Tunnel

Sela Tunnel

At 4,170 meters elevation, Sela Pass links Tawang Valley to India and is overseen year-round by the BRO. More than a geographical marvel, it symbolizes a lifeline, fostering access and opening the region for residents and explorers alike.


Strategic Implications

Once operational, the Bi-Lane Sela Tunnel becomes a game-changer for India’s defense capabilities. It provides year-round access to Tawang and other forward areas bordering China, significantly enhancing the strategic and operational readiness of the Indian Army. With its bi-lane design, the tunnel ensures swift troop movements, strengthening the country’s position along the Line of Actual Control (LAC).

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Gauri Goel
the authorGauri Goel
A soul working on a beautiful path called life, expressing through writing.