The tunnel helps move troops, weapons, and machinery quickly along the Sino-India border.

The tunnel provides access to Tawang by an all-weather road in the western region of Arunachal Pradesh throughout the year.

[2] During the 1962 Sino-Indian War, Maha Vir Chakra awardee Jaswant Singh Rawat held elements of the Chinese Army off at this mountain pass with the help of two local Monpa girls named Sela and Noora.

It avoids the winter snowfalls on the Sela Pass in addition to cutting down the travel time to Tawang by an hour.

It will enhance Indian military's capabilities in combating the threat of China's Western Theater Command opposite India's eastern sector of Line of Actual Control.

[1] The tunnels would ensure that the 171 km road between Bomdila and Tawang remains accessible in all weather conditions.