This paper explores the situation of Christian Adivasi communities in India as a case study for examining the intersections between religion, mobility, and inequality. Located at the margins of both dominant religious frameworks and state regimes of recognition, Christian Adivasi groups exemplify the condition of minorities within minorities, where religious affiliation reshapes access to forms of visibility, rights, and belonging. Conversion to Christianity does not simply add a new religious identity to an otherwise stable social position. Rather, it introduces a tension within existing frameworks of belonging, in which indigeneity is often implicitly defined through assumptions about cultural and religious continuity. Focusing on classifications of "authentic" indigeneity, the analysis shows how religious affiliation can become relevant in determining access to social visibility, institutional recognition, and rights, even where formal equality is maintained. In this context, religious pluralization does not necessarily lead to greater equality. Instead, it may contribute to the persistence of social and territorial inequalities by reconfiguring existing hierarchies through religious categories.