---
title: "India Documents Disputed Border Pockets in New Arunachal Pradesh Mapping"
url: https://projectchintan.com/article/india-maps-disputed-arunachal-pradesh-border-pockets-zmbrm
publisher: Project Chintan
author: Project Chintan Newsroom
section: India
published: 2026-08-09T20:15:27.131Z
modified: 2026-08-09T22:48:23.841Z
language: en-IN
---

# India Documents Disputed Border Pockets in New Arunachal Pradesh Mapping

India has officially mapped several contested pockets along the McMahon Line in Arunachal Pradesh, documenting areas currently held by Chinese forces. The initiative aims to formalize a record of the frontier to challenge attempts at altering the ground status quo.

## Key takeaways

- India has officially mapped the disputed frontier pockets of Longju, Bisa, and Maja along the McMahon Line.
- The People’s Liberation Army has established structures and road infrastructure in sectors previously occupied by Indian forces.
- Formal documentation of these contested zones is intended to bolster India's legal and cartographic record against status quo changes.

## What Happened

India has completed a mapping exercise covering disputed and sensitive frontier pockets along the McMahon Line in Arunachal Pradesh. The updated official Survey of India maps now include areas such as Longju, Bisa, and Maja, which are currently under Chinese occupation. These locations, along with Asaphila in Upper Subansiri, were identified in defense assessments a decade ago as disputed zones. The mapping also covers Thag La in Tawang, previously classified as a sensitive area and a major flashpoint during the 1962 war.

Recent assessments indicate that the People’s Liberation Army (PLA) has constructed structures in the mountainous terrain of Maja, where the Indian Army maintained a forward post before 1962. Furthermore, Chinese forces have built a road through Bisa to connect two points along the contested frontier. Defense sources state that documenting these locations provides New Delhi with a formal record to challenge territorial claims and monitor Chinese activity in sectors where the lack of clearly demarcated ground positions has historically complicated surveillance.

## Background

The India-China boundary in Arunachal Pradesh has been a site of recurring military tension. In 1962, PLA troops occupied the Fishtail-1 and Fishtail-2 regions before withdrawing following a unilateral ceasefire. These specific features remain unmapped in the current exercise. More recently, the frontier has seen several face-offs. In September 2016, Chinese troops entered the Yangtse sector, withdrawing only after a four-day standoff and a flag meeting. Additional confrontations occurred between Bum-La and Yangtse in October 2021 when PLA troops attempted to cross the Indian side of the border.

## Key Facts

- India has mapped the disputed pockets of Longju, Bisa, and Maja as its territory.
- The PLA has built structures in Maja and a road through the Bisa sector.
- Defence assessments categorize ten specific areas as either 'disputed' (Asaphila, Longju, Bisa, Maja, Tulung La, and Yangtse) or 'sensitive' (Thag La, Dichu, Fishtail-1, and Fishtail-2).
- Maja previously housed an Indian Army forward post before the 1962 conflict.
- Fishtail-1 and Fishtail-2 remain unmapped despite their sensitive status.

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Canonical: https://projectchintan.com/article/india-maps-disputed-arunachal-pradesh-border-pockets-zmbrm
Reported from: Multiple Sources