India has formally standardized the names of 27 locations and geographical features in Arunachal Pradesh on the Survey of India map, in a move that has drawn a sharp reaction from China. The locations include mountain passes, border settlements, a high-altitude lake and memorials associated with the 1962 India-China war.

The development is significant because Arunachal Pradesh has long been at the centre of the India-China territorial dispute. Beijing claims the Indian state as part of what it calls “South Tibet”, while India maintains that Arunachal Pradesh is an integral and inalienable part of the country.

The latest mapping exercise therefore has significance beyond geography. It represents an assertion of India’s official cartographic and administrative position in a strategically sensitive border region.

What Has India Done?

The updated Survey of India map has assigned standard names to 27 sites in Arunachal Pradesh.

According to reporting on the government move, the names were finalised in consultation with the Arunachal Pradesh government. The stated purpose of formally identifying the locations on Survey of India maps is to facilitate accurate recognition and improve public awareness.

The 27 locations include different types of geographical and inhabited features rather than simply 27 villages.

Among them are:

• Four mountain passes
• One high-altitude glacial lake
• Border villages
• Land areas
• A monument
• Sites associated with the 1962 war

The updated mapping is therefore both a cartographic exercise and a significant current-affairs development.

Which Important Places Are Included?

Several of the locations have particular strategic or historical significance.

1. Thag La

• Thag La is a high-altitude pass in the Tawang region and is associated with the 1962 India-China conflict.
• It overlooks the Namka Chu valley, where fighting began during the 1962 war.

2. Dzo La

Dzo La is among the high-altitude passes identified in the updated map and lies along the strategically sensitive eastern Himalayan frontier.

3. Riza La

Riza La is another pass along the McMahon Line region in Upper Subansiri district.

4. Pukur La

Pukur La is also included among the strategically important mountain passes identified by India.

5. Sambho Sarovar

The list includes Sambho Sarovar, described as a high-altitude glacial lake.

6. Longju

Longju is strategically important because it was an early flashpoint in the India-China boundary dispute. According to reporting, Chinese troops occupied the location in 1959.

7. Maja and Bisa

Maja and Bisa are among the strategically important border villages included in the list.

1962 War Heroes Also Feature

One particularly notable aspect of the latest map update is the inclusion of places associated with Indian soldiers who fought during the 1962 India-China war.

Sher-e-Thapa Memorial

• The Sher-e-Thapa Memorial commemorates Havildar Shere Thapa of the 2nd Battalion, Jammu & Kashmir Rifles.
• The memorial honours his resistance during the 1962 conflict in the Subansiri Valley.

Jaswant Garh

• Jaswant Garh in Tawang is associated with Rifleman Jaswant Singh Rawat, one of the most widely remembered Indian soldiers of the 1962 war.
• The memorial is located at about 10,000 feet on the road to Tawang and commemorates his role during the Battle of Nuranang.
• The inclusion of these memorials gives the latest mapping exercise an additional historical dimension.

Why Is India Naming These 27 Places Now?

• The move comes against the backdrop of repeated attempts by China to assign its own names to locations in Arunachal Pradesh.
• China has periodically announced Chinese names for locations in the Indian state as part of its broader territorial claim.
• India has consistently rejected these attempts, arguing that changing geographical names cannot alter the underlying territorial reality.
• The latest Indian mapping exercise can therefore be viewed as a way of strengthening consistency in official Indian maps and records.

What Is the McMahon Line?

• The McMahon Line is the boundary associated with the eastern sector of the India-China border.
• It emerged from the 1914 Simla Convention involving British India and Tibet, although China did not accept the agreement.
• For India, the McMahon Line forms the basis of its boundary position in the eastern sector.
• The region remains strategically important because Arunachal Pradesh shares an international border with China, Bhutan and Myanmar.

Why Arunachal Pradesh Is Strategically Important

Arunachal Pradesh is India’s northeastern frontier state and has enormous geographical and strategic importance.

Its terrain includes:

• High Himalayan mountains
• Major mountain passes
• Deep river valleys
• Remote border settlements
• Strategic roads
• Military posts
• Important routes connecting the northeastern region

The difficult terrain makes infrastructure, mapping and connectivity especially important for both civilian administration and national security.

India has therefore increased its focus on roads, bridges, communications and border-village development in the region.

China’s Reaction

• The latest Indian mapping move has triggered a fresh Chinese objection.
• According to reporting on August 10, 2026, China’s foreign ministry criticised India’s action and argued that changing the names used by China does not alter Beijing’s territorial position.
• Chinese state-linked media had also criticised the move, framing it as a unilateral step that could affect bilateral relations.
• India’s position remains that Arunachal Pradesh is an integral part of India, and that attempts to assign alternative names to locations within the state do not change this reality.

India-China Border Dispute: The Bigger Picture

• The naming dispute is only one part of the much larger India-China boundary issue.
• The two countries have a long-standing disagreement over their approximately 3,488-km disputed boundary, commonly referred to in India as the Line of Actual Control (LAC).
• The eastern sector involving Arunachal Pradesh remains particularly sensitive.
• The 1962 India-China war, subsequent military deployments and more recent border tensions have kept Arunachal Pradesh firmly on India’s national-security agenda.
• Consequently, developments involving maps, roads, border villages and place names can have significance beyond their immediate administrative purpose.

These twenty-seven (27) places/features so identified on the Survey of India map of the State of Arunachal Pradesh, are as under:

Click Here to view latest map of Arunachal Pradesh

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