Article 148 — Comptroller and Auditor General of India

Article 148 of the Constitution of India creates the office of the Comptroller and Auditor General of India (CAG), the apex authority responsible for auditing all receipts and expenditure of the Government of India and the State governments. The provision sits within Chapter V of Part V of the Constitution, headed "Comptroller and Auditor-General of India," which runs from Article 148 through Article 151. Dr B.R. Ambedkar, during the Constituent Assembly debates of 1949, described the CAG as "probably the most important officer" under the Constitution, ranking the office above even the judiciary in safeguarding the public purse. The institution was modelled on the Exchequer and Audit Departments tradition of the United Kingdom, but the framers deliberately reinforced its independence to insulate it from executive pressure in a parliamentary democracy where the government controls the legislature.

Article 148(1) provides that the CAG is appointed by the President of India by warrant under his hand and seal. The appointee may be removed only in the same manner and on the same grounds as a judge of the Supreme Court—that is, by an order of the President following an address by both Houses of Parliament supported by a special majority, on the ground of proved misbehaviour or incapacity, as prescribed under Article 124(4). Before assuming office, the CAG makes and subscribes an oath or affirmation before the President in the form set out in the Third Schedule. Article 148(3) guarantees that the salary and conditions of service shall not be varied to the CAG's disadvantage after appointment, and Article 148(6) charges the salary and administrative expenses of the office upon the Consolidated Fund of India, removing them from the annual vote of Parliament.

The substantive duties flow not from Article 148 itself but from Article 149, which empowers Parliament to prescribe the CAG's powers and duties; these were codified in the Comptroller and Auditor General's (Duties, Powers and Conditions of Service) Act, 1971. That statute fixed the term at six years or until the age of 65, whichever is earlier, and barred the holder from further office under the Government of India or any State after demitting office, mirroring the post-retirement restriction on the Union Public Service Commission chairman. Article 148(5) gives the CAG, subject to law, the power to determine the conditions of service of persons in the Indian Audit and Accounts Department. Article 150 requires that Union and State accounts be kept in the form the President prescribes on the CAG's advice, and Article 151 mandates that audit reports relating to the Union be submitted to the President and laid before each House of Parliament, and State reports to the Governor and the State legislature.

In practice, the CAG conducts three principal classes of audit: financial audit certifying that accounts present a true and fair view, compliance audit verifying adherence to rules and appropriations, and performance audit assessing economy, efficiency and effectiveness. Recent holders include Vinod Rai (2008–2013), whose performance audits of the 2G spectrum allocation and coal block allocations produced presumptive-loss estimates that dominated political debate; Shashi Kant Sharma (2013–2017); Rajiv Mehrishi (2017–2020); and Girish Chandra Murmu, appointed in August 2020. The CAG's reports are examined by the Public Accounts Committee and the Committee on Public Undertakings of Parliament, making the office the linchpin of legislative financial control. Internationally, Murmu's tenure included the CAG's appointment as external auditor of the World Health Organization and the International Atomic Energy Agency.

The CAG is distinct from the Public Accounts Committee (PAC), the parliamentary body that scrutinises the CAG's findings; the CAG audits and reports, while the PAC interrogates accounting officers and recommends remedial action. It is equally distinct from the Finance Commission under Article 280, which recommends the distribution of tax revenues rather than auditing their use. A frequent confusion concerns the title: despite the word "Comptroller," the Indian CAG—unlike the British Comptroller and Auditor General—exercises no control over the issue of money from the Consolidated Fund at the disbursement stage. The framers vested that comptrolling function in the executive, so the Indian office is functionally an auditor general and the "comptroller" element is largely nominal, a point repeatedly noted by administrative reform commissions.

Controversies have centred on the methodology of presumptive-loss computation and on the boundary between performance audit and policy critique. Critics, including former officials, argued that the 2G and coal reports trespassed into evaluating policy choices that are the executive's prerogative; defenders maintained that auditing the consequences of those choices falls squarely within performance-audit mandate. A recurring reform proposal, advanced in the second Administrative Reforms Commission and in private member bills, is to convert the single-member office into a multi-member collegium and to institute a broad-based selection committee for appointment, since the current warrant-by-President procedure leaves the choice effectively with the executive. None of these proposals has been enacted, and the office remains a single-member institution.

For the working practitioner—whether a desk officer drafting accounting forms, a parliamentary researcher briefing the PAC, or a journalist tracking expenditure scandals—Article 148 is the constitutional anchor of public financial accountability in India. Understanding the precise division of labour between Articles 148 through 151, the statutory term fixed by the 1971 Act, and the CAG's removal procedure equivalent to a Supreme Court judge is essential to assessing the institution's independence and to interpreting the legal weight of its reports, which carry no binding force but command durable political authority.