Bank regulation and supervision: capital, risk and depositor protection

Bank regulation exists because banks are special: they hold the public's savings, operate the payment system and lend on a scale that affects the whole economy. When a bank fails, depositors, borrowers, other banks and the government can all suffer, so regulators impose rules before failure rather than only cleaning up afterwards. The Reserve Bank of India is the main banking regulator, operating under the Reserve Bank of India Act, 1934, and the Banking Regulation Act, 1949, which governs licensing, management, capital, lending limits and supervision.

Capital adequacy is the centrepiece of prudential regulation. Banks must hold a minimum amount of their own capital, mainly shareholders' funds and retained earnings, relative to risk-weighted assets, so that losses fall first on owners rather than depositors. The Basel framework, developed by the Basel Committee on Banking Supervision, sets international standards for capital, liquidity and risk measurement, implemented in India with adaptations, including a higher minimum capital requirement than the Basel floor for many banks. Liquidity rules require banks to hold enough liquid assets to survive short-term outflows, while large-exposure limits prevent over-dependence on a single borrower or group.

Supervision complements rules. The Reserve Bank inspects banks, monitors asset quality, classifies loans, requires provisioning for expected losses, and can impose prompt corrective action on weak banks, restricting lending, dividends or expansion until capital and asset quality improve. It can also supersede a bank's board in extreme cases and arrange mergers. Deposit insurance, through the Deposit Insurance and Credit Guarantee Corporation, protects small depositors up to five lakh rupees per depositor per bank, which aims to prevent panic withdrawals while limiting moral hazard, the risk that insured banks take excessive risks because depositors will not discipline them.

The balance in regulation is always contested. Too little regulation invites crises, as the history of bank failures shows, while too much can raise costs, reduce credit and push activity to less-regulated lenders. Regulation also interacts with development goals: priority sector lending, interest caps or loan relief may serve social aims but weaken balance sheets. A careful reader therefore asks not only whether rules exist, but whether they are enforced promptly, whether supervisors act on early warnings, and whether losses are recognised honestly rather than hidden through restructuring.