Statutory Liquidity Ratio in India: SLR Rules for CAIIB 2026

For CAIIB Central Banking candidates, the statutory liquidity ratio in India looks like a single percentage but hides an entire regulatory architecture — a statute, a list of eligible assets, a daily maintenance test and a penalty schedule. Examiners rarely ask "what is the current rate"; they ask which section governs it, which assets qualify, how the base is computed and what happens on a shortfall. This guide covers the SLR exactly the way the Central Banking elective tests it.

📘 What the Statutory Liquidity Ratio in India Actually Is

SLR is a prudential reserve requirement imposed by Section 24 of the Banking Regulation Act, 1949. Every banking company must maintain in India, at the close of business on every day, assets whose value is not less than a prescribed percentage of its net demand and time liabilities (NDTL) in India.

The requirement predates inflation targeting by decades. Its original purpose was twofold: force banks to keep a slice of public deposits in safe, liquid, quickly realisable assets, and create captive demand for government paper. At its peak in 1990-91 the ratio stood at 38.5% of NDTL, which is why the pre-reform period is described as one of financial repression.

Two statutory numbers matter for the exam. The Banking Regulation (Amendment) Act, 2007 removed the 25% statutory floor, giving RBI complete discretion to fix any rate it considers appropriate. The ceiling of 40% of NDTL was retained. The rate has stood at 18.00% of NDTL since 11 April 2020, reduced from 18.25%, and RBI has left it untouched since — it is now a prudential and structural tool rather than an active monetary lever.

SLR applies across the banking system: scheduled and non-scheduled commercial banks, regional rural banks, small finance banks, local area banks, payments banks and co-operative banks. Payments banks carry an additional condition — a minimum of 75% of their demand deposit balances must sit in SLR-eligible government securities and treasury bills of up to one-year maturity. If liquidity plumbing is still hazy, work through LIQUIDITY MANAGEMENT IN THE SYSTEM before attempting numericals.

💡 Exam Tip: Remember the pairing — SLR sits in the Banking Regulation Act, 1949 (Section 24), while CRR sits in the RBI Act, 1934 (Section 42). Swapping the two statutes is the single most common mistake in this chapter.

🏦 Which Assets Qualify Towards the SLR

Only four broad categories count, and each carries a condition. First, cash in hand, including balances maintained with RBI over and above the required CRR — excess CRR balances are reckoned for SLR, which is a favourite one-liner in tests. Second, gold, valued at a price not exceeding the current market price. Third, unencumbered investments in approved securities, formally called SLR securities: dated Central Government securities, treasury bills and State Development Loans. Fourth, any net balance held with RBI beyond the mandatory reserve.

The word unencumbered does the heavy lifting. Securities pledged, lent, or sold under a repo transaction are encumbered and cannot be double-counted. Fixed deposits and current account balances kept with other commercial banks do not qualify at all, however liquid they feel commercially. Candidates routinely lose marks by treating inter-bank deposits as SLR assets.

Valuation follows RBI's investment norms rather than a bank's own accounting preference. A significant update: under the Master Direction on Classification, Valuation and Operation of Investment Portfolio of Commercial Banks, effective 1 April 2024, the earlier ceiling on the Held-to-Maturity category was withdrawn. Banks now classify securities by business model and cash-flow characteristics instead of squeezing SLR holdings under a fixed HTM cap, which materially changed how excess SLR paper is parked.

One carve-out deserves memorising. Under the Marginal Standing Facility, banks are permitted to dip into their SLR portfolio up to 2% of NDTL to borrow overnight from RBI, and that dip does not attract a shortfall penalty. The temporary pandemic-era enhancement to 3% lapsed and the limit reverted to 2%. Chapter revision on Reserve Bank of India functions ties this back to the lender-of-last-resort role.

🧮 How Banks Compute and Maintain the Ratio Daily

The base is NDTL, not total deposits. Demand liabilities include current deposits, demand drafts, unclaimed deposits and the demand portion of savings deposits. Time liabilities include fixed deposits, cash certificates and the time portion of savings balances. From the aggregate, banks net off inter-bank assets against inter-bank liabilities — only the net inter-bank liability enters NDTL. A refresher on money supply measures in India makes the NDTL build-up far easier to reconstruct in an exam hall.

Timing is where most candidates slip. The SLR obligation for any given fortnight is computed on NDTL as on the last Friday of the second preceding fortnight. That two-fortnight lag exists so banks know their exact obligation in advance and can plan securities purchases.

Since the 2007 amendment, SLR must be maintained on a daily basis at the close of business every single day. There is no averaging relief and no permitted daily minimum — a feature that sharply distinguishes it from CRR, where averaging over the fortnight is allowed subject to a daily floor. A bank cannot run light on Monday and over-hold on Friday to average out.

Reporting runs through the Form VIII return submitted to RBI, showing the position as at the close of business on each alternate Friday, filed within the prescribed timeline of the succeeding month. CRR compliance is reported separately in Form A. Where a Friday is a holiday, the preceding working day's position is taken.

⚠️ Common Mistake: Assuming SLR can be averaged over the fortnight like CRR. SLR is a daily 100% test; CRR permits fortnightly averaging with a daily minimum of 90% of the required balance.

⚖️ SLR vs CRR: The Comparison Every Paper Tests

A side-by-side is the fastest way to lock this in. Note especially the "interest earned" and "averaging allowed" rows — those two columns generate more MCQs than any others in the chapter.

Both ratios sit inside the wider policy toolkit alongside the corridor instruments. Once this table is secure, read up on the Standing Deposit Facility and liquidity corridor to see how reserve requirements and the operating framework interact, and keep the live positions handy from the RBI policy rates tracker.

🚨 Penalties, the LCR Overlap and the Policy Debate

Default is expensive and the numbers are examinable. If a bank fails to maintain the required SLR on any day, RBI levies penal interest at 3% per annum above the Bank Rate on the shortfall amount for that day. If the shortfall continues on the next succeeding working day, the penal rate rises to 5% per annum above the Bank Rate for each subsequent day of default. The identical 3%/5% structure applies to CRR shortfalls, which is why the two are easy to confuse in reverse.

The Basel III Liquidity Coverage Ratio created an obvious tension: the same government securities were locked into SLR yet needed to be counted as High Quality Liquid Assets. RBI resolved it with a carve-out. Banks may reckon government securities within the mandatory SLR as Level 1 HQLA up to 2% of NDTL under the MSF window and up to 16% of NDTL under the Facility to Avail Liquidity for LCR (FALLCR) — a combined 18%, matching the SLR itself. Without this, a rupee of G-Sec would have been sterilised twice over.

Policy-wise, SLR has largely retired as a monetary instrument. RBI now steers liquidity through repo operations and the corridor, and SLR survives as a prudential floor plus a structural support for government borrowing. Critics argue the captive demand still suppresses the true cost of sovereign debt; supporters point to the cushion it provided in successive stress episodes. That debate connects directly to Financial Stability and to the way the inflation targeting framework in India reallocated instruments after 2016. The official position on rates and eligible instruments is always the master circular set published on the Reserve Bank of India website.

📌 Remember: Excess CRR balances count towards SLR, but SLR securities can never be counted towards CRR. The relationship runs one way only.

🧠 Practice MCQs: Statutory Liquidity Ratio

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❓ Frequently Asked Questions

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Lock in the statute, the 40% ceiling, the daily maintenance rule and the 3%/5% penalty ladder — those four points carry most of the marks this chapter offers. Continue with the related coverage in our Central Banking elective article library, cross-read the ABFM treatment of securitisation of assets for how banks free up balance-sheet capacity, and then attempt a full CAIIB practice set while the numbers are fresh.