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Risk Management in Banking and Insurance · Introduction to Risk Management

Regulatory Framework: Basel Norms and RBI Guidelines

Updated 11 October 2026 · Fact-checked

Basel norms are global standards issued by the Basel Committee on Banking Supervision to keep banks adequately capitalised. Basel I covered credit risk, Basel II added three pillars (capital, supervision, disclosure), and Basel III raised capital quality and added buffers, leverage and liquidity standards. RBI adopts them for Indian banks, often with stricter minimums. To solve questions, compute capital ÷ risk-weighted assets.

Understand Regulatory Framework: Basel Norms and RBI Guidelines

Banks lend out other people's money. If loans go bad, depositors can lose out and the financial system can be shaken. Regulators therefore require banks to hold a cushion of their own capital. The Basel Committee on Banking Supervision (BCBS), which meets under the Bank for International Settlements, sets global standards for this cushion. The Basel Accords are not law. Each country's regulator turns them into binding rules. In India, that regulator is the Reserve Bank of India (RBI).

Basel I (1988) focused on credit risk. It set a minimum capital ratio of 8% of risk-weighted assets, using a few broad risk-weight buckets. It was simple, but it did not separate a good borrower from a weak one within the same bucket, and it ignored market and operational risk at first (market risk was added by an 1996 amendment).

Basel II made the system more risk-sensitive through three pillars. Pillar 1 is minimum capital for credit, market and operational risk. Pillar 2 is the supervisory review process: the bank assesses its own capital needs (ICAAP) and the supervisor reviews it. Pillar 3 is market discipline through public disclosure of risk and capital data. Credit risk could be measured by the standardised approach or by internal ratings-based approaches.

Basel III, developed after the 2007-09 global financial crisis, tightened the definition of capital so that more of it is loss-absorbing common equity. It added a capital conservation buffer, a countercyclical buffer, a leverage ratio, and two liquidity standards (the Liquidity Coverage Ratio and the Net Stable Funding Ratio). It also introduced extra requirements for systemically important banks.

RBI applies these norms to Indian banks through master circulars and directions. Its capital adequacy framework is generally in line with Basel III and, on some points, stricter than the Basel minimum. For example, RBI's minimum total capital ratio is 9%, against 8% in the Basel framework. Always remember the pattern: Basel sets the global floor, RBI sets the Indian rule, and the bank must meet the higher of the two.

Key rules to remember

Capital Adequacy Ratio (CRAR)
CRAR = (Tier 1 capital + Tier 2 capital) ÷ Risk-weighted assets × 100
RBI's minimum is 9% for Indian scheduled commercial banks. The Basel minimum is 8%.
Risk-weighted assets (credit risk)
RWA = Σ (Exposure × Risk weight)
Add market-risk and operational-risk RWA to get total RWA. Off-balance sheet items are first converted using credit conversion factors.
Three pillars of Basel II
Pillar 1: Minimum capital | Pillar 2: Supervisory review | Pillar 3: Market discipline
Pillar 2 includes ICAAP; Pillar 3 is disclosure.
Basel III capital structure
Total capital = Tier 1 (Common Equity Tier 1 + Additional Tier 1) + Tier 2
Tier 1 is going-concern capital. Tier 2 is gone-concern capital.
Basel III minimum ratios under RBI
CET1 ≥ 5.5% | Tier 1 ≥ 7% | Total capital ≥ 9% | Capital conservation buffer = 2.5% of RWA (in CET1)
With the buffer, effective CET1 is 8%, Tier 1 is 9.5% and total capital is 11.5%. Check the latest RBI circular if the question gives different figures.
Leverage ratio
Leverage ratio = Tier 1 capital ÷ Total exposure (not risk-weighted)
A non-risk-based backstop. It limits build-up of leverage.

How to solve Regulatory Framework: Basel Norms and RBI Guidelines questions

Questions on this topic are either descriptive (explain, compare, discuss) or numerical (compute the capital ratio). Use this method for both.

  1. 1Identify what is asked: a comparison of Basel I, II and III, a description of the pillars, RBI's rules, or a ratio calculation.
  2. 2For descriptive questions, define the Basel framework in one line and state who issues it (BCBS) and who enforces it in India (RBI).
  3. 3Structure the answer by accord or by pillar, with a clear heading for each. Give the core feature, then the improvement over the earlier version.
  4. 4Add the RBI position: minimum ratios, buffers and how Indian norms compare with the Basel floor.
  5. 5For numerical questions, compute risk-weighted assets first. Apply the risk weight to each exposure and add them up.
  6. 6Compute eligible capital by tier, then divide capital by RWA and express it as a percentage.
  7. 7Compare the result with the RBI minimum (and the buffer if the question mentions it), and state whether the bank is compliant and by how much.
  8. 8Close with a one-line conclusion or recommendation, such as raising capital or reducing risk-weighted assets.

Quickest way: Three-line Basel comparison and ratio check

When to use it: Use this for 2-mark MCQs and for starting a long answer when time is short.

  1. Remember: Basel I = credit risk, 8%, simple. Basel II = three pillars, risk-sensitive. Basel III = better capital, buffers, leverage ratio, liquidity.
  2. For any ratio, write capital ÷ RWA × 100 and compare with 9% (RBI), or 11.5% if the capital conservation buffer is included.
  3. In MCQs, eliminate options that mix up pillars, for example calling disclosure Pillar 2 or supervisory review Pillar 3.

Common mistakes in Regulatory Framework: Basel Norms and RBI Guidelines

  • Dividing capital by total assets instead of risk-weighted assets.

    Students treat capital adequacy like a simple equity ratio.

    Fix: Always convert each asset to RWA using its risk weight. Only the leverage ratio uses unweighted exposure.

  • Mixing up Pillar 2 and Pillar 3.

    Both sound like oversight, so students confuse them.

    Fix: Pillar 2 is the supervisor reviewing the bank's capital process (supervisory review). Pillar 3 is the bank disclosing information to the market (market discipline).

  • Quoting 8% as the Indian minimum capital ratio.

    The Basel figure is better known than RBI's stricter one.

    Fix: State that Basel's minimum is 8% and RBI requires 9% for Indian banks, and add the 2.5% conservation buffer where relevant.

  • Saying Basel norms are laws that bind banks directly.

    Students forget that BCBS is a standard setter, not a legislator.

    Fix: Write that Basel standards are implemented in India only through RBI regulations and directions.

  • Treating Basel III as only a capital ratio change.

    Students remember the higher capital but skip other elements.

    Fix: List all parts: higher quality capital, conservation and countercyclical buffers, leverage ratio, LCR and NSFR, and extra norms for systemically important banks.

  • Counting Tier 2 capital inside Tier 1 or ignoring the tier structure.

    Capital types are memorised as a list without their meaning.

    Fix: Remember Tier 1 absorbs losses while the bank continues (going concern), and Tier 2 absorbs losses at failure (gone concern). Total capital is the sum.

Worked examples

Example 1

A bank has the following credit exposures: ₹400 crore to the central government (risk weight 0%), ₹300 crore of home loans (risk weight 50%) and ₹500 crore of corporate loans (risk weight 100%). Its Tier 1 capital is ₹60 crore and Tier 2 capital is ₹20 crore. Ignore market and operational risk. Compute the CRAR and state whether the bank meets RBI's 9% minimum.

Show the solution
  1. Compute RWA for each exposure. Government: ₹400 crore × 0% = ₹0. Home loans: ₹300 crore × 50% = ₹150 crore. Corporate: ₹500 crore × 100% = ₹500 crore.
  2. Total RWA = 0 + 150 + 500 = ₹650 crore.
  3. Total capital = Tier 1 + Tier 2 = ₹60 crore + ₹20 crore = ₹80 crore.
  4. CRAR = 80 ÷ 650 × 100 = 12.31% (approximately).
  5. Compare with the RBI minimum of 9%: 12.31% is higher, so the bank is compliant.
  6. Capital needed at 9% = 9% × 650 = ₹58.5 crore. Surplus = 80 − 58.5 = ₹21.5 crore.

Answer: CRAR is about 12.31%, which is above the 9% RBI minimum, so the bank is compliant with a capital surplus of ₹21.5 crore.

Example 2

Explain the three pillars of Basel II and state how Basel III improved on the Basel II framework.

Show the solution
  1. Introduce Basel II as the 2004 framework from BCBS that made capital requirements more risk-sensitive than Basel I.
  2. Pillar 1, minimum capital requirements: banks must hold capital against credit risk, market risk and operational risk. Credit risk can be measured by the standardised or internal ratings-based approach.
  3. Pillar 2, supervisory review: the bank assesses its overall capital needs through its internal process (ICAAP), and the supervisor reviews it and can require extra capital.
  4. Pillar 3, market discipline: the bank discloses its capital, risk exposures and risk assessment so that investors and depositors can judge it.
  5. Basel III improvements: higher quality of capital with more common equity, a capital conservation buffer and a countercyclical buffer, a leverage ratio as a non-risk-based backstop, and liquidity standards (LCR and NSFR).
  6. Add that Basel III also sets extra norms for systemically important banks, and that RBI implements these for Indian banks through its directions.

Answer: Basel II rests on minimum capital (Pillar 1), supervisory review (Pillar 2) and market discipline (Pillar 3). Basel III, introduced after the global financial crisis, strengthened capital quality and quantity, added buffers and a leverage ratio, and introduced liquidity standards.

Exam tips

  • For comparison questions, use a clear Basel I, II, III sequence with one distinguishing feature each. Examiners reward structure.
  • Learn the RBI figures (9% total capital, 5.5% CET1, 7% Tier 1, 2.5% buffer) and quote them, but use the numbers given in the question if they differ.
  • In numerical questions, show the RWA table first. Marks are usually given for the working even if the final division slips.
  • In case-scenario MCQs, check whether the question asks about the ratio with or without the buffer before choosing an option.
  • End descriptive answers with the RBI angle. It shows application to the Indian context, which is what the paper tests.

Practice questions from Introduction to Risk Management

Regulatory Framework: Basel Norms and RBI Guidelines in other exams

The same ground in other exams, if you are preparing for more than one or want another angle on it.

Regulatory Framework: Basel Norms and RBI Guidelines: frequently asked questions

What is the difference between Basel I, II and III?

Basel I set a simple 8% capital requirement for credit risk. Basel II added three pillars and more risk-sensitive measurement. Basel III improved capital quality, added buffers and a leverage ratio, and introduced liquidity standards.

What are the three pillars of Basel II?

Pillar 1 is minimum capital requirements for credit, market and operational risk. Pillar 2 is the supervisory review process. Pillar 3 is market discipline through disclosure.

What is the capital adequacy ratio under Basel III in India?

It is total eligible capital divided by risk-weighted assets, expressed as a percentage. RBI requires a minimum of 9%, plus a capital conservation buffer of 2.5% in the form of common equity, which takes the effective requirement to 11.5%.

Are Basel norms legally binding on Indian banks?

Basel norms are international standards, not law. They bind Indian banks only because RBI issues them as regulations and directions under its powers over banks.