This chapter explores, through ethnographic research conducted in the Indo(Naga)-Myanmar borderland, the relationship between ethnography and social work, and the advantage that ethnographic research offers to practice. It shows how ethnographic research closely connected to the process of practice facilitates in-depth and field-based understanding of the ground reality through a periodic ethnographic field immersion into the “lifeworld” and “everyday state” at the borders. The field immersion reveals that ethnographic fieldwork in this border site of practice, although challenging, creates possibilities for building a meaningful relationship between the researcher, social worker, and the field at the margins. In this light, this chapter underscores how ethnographic exploration unravels the ground reality of borderland embedded in practice, location, and region—layered and complex. In doing so, it recognizes and suggests borderland social work practice through ethnographic research (decolonial in sense), knowledge building, and praxis in relation to subjectivities of the field at the margins/borders running across northeast India and southeast Asian border regions.