Bum La Pass, Mountain pass between Tawang district, India and Tsona County, China.

Bum La is a mountain pass in the Himalayas at about 4,600 meters (15,000 ft) elevation, linking Arunachal Pradesh in India with Tibet. The route crosses steep terrain through high-altitude landscape and serves as one of the few connections between the two regions.

The pass played a crucial role during the 1962 war when Indian and Chinese forces engaged in heavy fighting at this high-altitude location. These military clashes continue to shape the pass's political importance today.

Indian visitors pile pebbles on the stone cairn at the pass as thanks to the Himalayas and to the Indian security forces, and a Sino-Indian friendship sign stands beside it. The pass is also an agreed Border Personnel Meeting point, with a hut on the Indian side where the two armies hold talks.

Visiting requires special permits from the Deputy Commissioner's office in Tawang and the Indian Army cantonment. The journey demands good physical fitness because of the altitude and harsh weather conditions in this region.

A Border Personnel Meeting point at Bum La facilitates regular diplomatic discussions between Indian and Chinese military representatives throughout the year.