Constitutionalism in the decolonising world was not merely an adoption of a set of norms pre-fabricated in the West. A materialist analysis of the Indian constitution argues for the socio-historical specificity of the post-colonial constituent project. Externally the goal of decolonisation was not just political freedom but also economic sovereignty. Internally an under-developed and unequal society posed a persistent danger of unrest for the new regime. Across much of the post-colonial world the solution was a project of planned state-led development and social transformation. The post-colonial constitution was designed to facilitate and realise this goal. These projects demanded the primacy of sovereignty over property and, hence, the constitution differentiated from metropolitan norms privileging property and constraining state interventions. It was a constitution by and for administrators and planners who were the vanguards of Third Worldism. Sans a popular mobilisation, however, a top down project of transformation through constitution failed. As the fortunes of planning declined and the Third World was ‘liberalised’, lawyers supplanted the administrators as the primary custodians of the post-colonial constitutions. Projects of planned transformation gave way to social rights litigation.