This document is the Constitution (One Hundred and Twenty-Seventh Amendment) Bill, 2021. It aims to clarify that state governments and union territories retain the power to prepare and maintain their own lists of socially and educationally backward classes. This is to ensure the federal structure of the country is maintained. The bill proposes amendments to articles 338B, 342A, and 366 of the Constitution. It is useful for legal professionals, policymakers, and citizens interested in constitutional law and social justice.