| Abstract: | Borders are not only geographical markers but also political constructs that shape governance, socio-economic relations, and cultural interactions. This study examines local perceptions of the Assam–Arunachal Pradesh border dispute with a focus on Durpai village in Lower Siang district. Tracing the issue from the Ahom period to the present, it explores the historical and political factors behind contested demarcations and their continued impact on local communities. Using purposive random sampling, the research captures both historical narratives and contemporary experiences of the villagers. The findings reveal that, despite ongoing cross-border exchanges of goods, services, and social ties, the absence of a settled boundary perpetuates mistrust, insecurity, and apprehension. The study argues that the dispute has far-reaching implications for peace, development, and inter-state relations, and emphasizes the need for inclusive and participatory approaches to boundary resolution. |