India-Nepal Border Relations: Implications of Nepal's Admission on Territorial Encroachment

The recent public acknowledgement by Nepal’s Prime Minister regarding the encroachment of Indian territory marks a pivotal moment in the often-complex India-Nepal bilateral relationship. For years, the 1,850 km long open border between the two nations has been a source of both unique socio-economic cooperation and periodic diplomatic friction. This admission is particularly significant given the history of territorial disputes, most notably the 2020 map controversy where Nepal updated its national emblem to include disputed regions. The boundary between India and Nepal is primarily governed by the Treaty of Sugauli of 1816. While the majority of the border is well-defined, certain sectors—most notably Kalapani, Lipulekh, and Susta—have remained points of contention due to differing interpretations of the origin of the Kali River and shifting river courses. India’s Ministry of External Affairs (MEA) has maintained a consistent stance, advocating for the resolution of all boundary matters through the Boundary Working Group (BWG) and high-level diplomatic dialogue, rather than through unilateral legislative actions or public politicization.