The April 10, 2026 announcement by China's Ministry of Civil Affairs of the sixth batch of standardized place names in Arunachal Pradesh, which it refers to as "Zangnan" (Southern Tibet), represents a continuation of a calibrated, non-kinetic strategy within the broader India-China boundary dispute.
Although framed as an administrative exercise, the progressive expansion and refinement of toponymy should be understood as part of a layered approach to territorial assertion, combining symbolic, legal, psychological and strategic dimensions under conditions of unresolved sovereignty.
India has firmly rejected China's move, calling it a "mischievous attempt" to assign "fictitious" names to parts of its territory. It maintains that such efforts to advance "false claims" and "baseless narratives" cannot change the reality that Arunachal Pradesh "was, is, and will always remain" an integral part of India. New Delhi also warned that these actions "detract from efforts to stabilize and normalize" bilateral ties and urged China to avoid steps that "inject negativity" into the relationship.
A critical starting point for understanding the evolution of China's toponymy, lies in the transformation of China's cartographic posture over the past two decades. In June 2008, the Atlas of Tibet Autonomous Region, published by China Map Publishing House, presented a dense and detailed representation of the eastern sector, incorporating hundreds of place names. However, in the period between 2009 and 2017, this representation was sharply curtailed.
Official maps retained only 16 names in total-nine settlements and seven rivers, effectively reducing the cartographic presence of Chinese claims to a minimal core. The settlements included Tawang, Dirang Dzong, Bomdila, Gelinxiang, Niumu, Gedao, Liga, Apalong, and Walong, while the rivers included the Kameng, Subansiri, Kamla, Siyom, Brahmaputra (Yarlung Tsangpo), Danba, and Zayu systems. This phase of cartographic retrenchment reflected a period in which both sides, following the 2005 Agreement on Political Parameters and Guiding Principles, exercised relative restraint in symbolic assertion in order to preserve the stability of ongoing boundary negotiations.
The subsequent shift toward incremental toponymic expansion began in April 2017, when China released the first batch of six standardized place names. This was followed by a second batch of 15 names in December 2021, 11 names in April 2023, 30 names in March 2024, 27 names in May 2025, and most recently 23 names in April 2026. This sequence demonstrates a clear pattern of systematic densification, gradually reconstructing a detailed administrative geography of the eastern sector. Rather than a sudden escalation, the approach is cumulative, embedding new layers of nomenclature over a period of time and is likely to continue to expand in future.
The inflection point for this shift must be situated in the aftermath of the 2020 Galwan Valley clash, which fundamentally altered the trust architecture that had underpinned India-China border management since the 1990s. Prior to Galwan, bilateral agreements, particularly those of 1993, 1996, and 2005 had established a framework centred on non-use of force, confidence-building measures, and the management of ambiguity along an un-demarcated Line of Actual Control (LAC). The Galwan incident disrupted this equilibrium in several ways.
First, it demonstrated the breakdown of established norms governing non-violent engagement, as lethal confrontation occurred despite longstanding protocols. Second, it exposed the limitations of existing confidence-building mechanisms, which proved reactive rather than preventive in the face of rapid escalation. Third, it catalysed a shift toward sustained forward deployment by both sides, reducing the stabilizing effect of distance and increasing the salience of tactical positioning. In this altered environment, non-kinetic instruments such as toponymic assertion have gained greater importance as tools of strategic signalling from China.
The sixth batch of standardized place names illustrates the increasing technical sophistication of this approach. The 23 newly designated names are distributed across multiple sub regions, including seven in the Monyul (Tawang) area, seven in the Subansiri basin and adjacent river systems, three in the Brahmaputra basin, four in the Danba River basin, and two in the Zayu (Chayu) River basin. This distribution suggests an effort to achieve spatial balance, ensuring that no major hydrological or cultural zone remains underrepresented in the evolving nomenclature. Notably, only two of the 23 names correspond to settlements-Chaku and Sinchung, while the remainder consist primarily of natural features such as rivers, mountain passes, peaks, and ridges.
The inclusion of Chaku is strategically significant, as it represents the furthest point of advance reached by the invading People's Liberation Army (PLA) during the 1962 War in the Tawang sector and occupies a position overlooking the Assam plains. Sinchung, previously rendered as "Xinchuan," is currently designated by India as a sub-district in West Kameng and is associated with a substantial Indian military presence. The naming of these locations thus carries both historical and contemporary relevance.
In addition, the designation of two rivers-Biguo Qu, a minor river in the Nyishi tribal region, and the Yinburi River, previously known as the Arpong River, reflects an effort to refine hydrological mapping. The identification of mountain passes, including one south of Longzi County via the Nie'axi Beng La valley and another linking Ziro to the Itanagar region, further enhances the granularity of geographic representation. The remaining 17 names, consisting largely of peaks, slopes, and ridgelines, significantly increase the toponymic density of the region, particularly in high-altitude terrain where prior naming coverage was sparse.
Although these naming efforts lack immediate operational utility, given that Arunachal is an Indian province, they nonetheless have important implications for border patrolling arrangements. By constructing a more detailed internal geographic framework, China enhances the precision with which it can define and communicate its territorial claims, although, during the 1960 boundary negotiations, it lacked even basic coordinate knowledge within Tibet, let alone in Arunachal Pradesh.
Over time, this strategy may influence patrol patterns of the PLA, particularly when the LAC has not been mutually agreed upon. Divergent geographic reference systems can contribute to increased friction, as patrols from both sides operate according to different cartographic logics. While existing agreements mandate restraint and provide mechanisms for de-escalation, the gradual hardening of claim perceptions may reduce the effectiveness of these mechanisms, especially in contested pockets where overlapping patrol routes are common.
The naming campaign also has implications for the ongoing process of boundary negotiations. By systematically expanding its toponymic presence, China is effectively strengthening its long-term legal and narrative position. In international disputes, sustained administrative acts, such as naming, mapping, and documentation contribute to the construction of a historical record that can be mobilized in diplomatic or legal contexts. At the same time, the regularization of such acts may erode the tacit understandings that previously constrained symbolic escalation, thereby complicating efforts to rebuild trust. For India, which maintains jurisdiction in the eastern sector, the challenge lies in responding in a manner that upholds its territorial position without amplifying the symbolic impact of China's actions.
This dynamic must also be understood in relation to the current ground reality along the border. From the Chinese perspective, strategy along the LAC integrates infrastructure development, resettling population in border villages, sustained military deployment, and regularized patrol presence. Investments in border villages, transportation networks, and logistical systems enhance the capacity for rapid mobilization and long-term sustainment. At the same time, the forward deployment of forces and the maintenance of patrol activity in contested zones ensure that claims are continuously asserted in practice, even in the absence of overt territorial change. Within this broader framework, toponymic expansion serves as a complementary instrument, reinforcing the administrative and cognitive dimensions of territorial control.
In conclusion, China's sixth batch of standardized place names should be interpreted not as an isolated administrative measure, but as part of a broader strategy of incremental assertion in the India-China boundary dispute. While the immediate effects remain largely symbolic, the cumulative impact of such actions lies in their ability to shape perceptions, reinforce claims, and gradually alter the parameters of engagement, Chinese strategy in the South China Sea is a pointer.
In the post-Galwan environment, where trust has been significantly eroded and both sides have adopted more forward-leaning postures, these developments contribute to a subtle but persistent hardening of the dispute. The contest over territory thus continues not only through military presence and infrastructure, but also through the quieter, yet strategically consequential, domain of maps, names, and geographic knowledge.
* B.R. Deepak is Professor, Center of Chinese and Southeast Asian Studies, Jawaharlal Nehru University, New Delhi.