This chapter explores how India’s constitutional law has addressed the administrative and regulatory State as it has evolved outside the traditional branches of government, and how judicial review is exercised over it. It begins by providing a background on constitutional issues relating to the administrative State as it functions within the executive branch, before turning to a discussion of the major regulatory bodies that either are explicitly called ‘regulatory’ or exercise regulatory functions. It then considers the constitutional position of the administrative and regulatory State based on judicial decisions and on the Indian Constitution. It also examines the conceptual underpinnings of, and justification for, the regulatory State, along with some specific concerns arising from the regulatory State such as legal uncertainty and excessive delegation. The chapter concludes by analysing some of the issues associated with the emerging constitutional jurisprudence on the regulatory State.