Repo Rate, Reverse Repo, CRR & SLR Explained
What each tool does, who controls it and how UPSC tests it. This guide uses the rates in force after the RBI's 7 October 2026 policy, when the repo rate rose to 5.50%.
Plenty of UPSC notes still call the reverse repo rate the floor of the RBI's interest rate corridor. That line went out of date on 8 April 2022. If you are revising repo rate, CRR and SLR from old notes, this single error can cost you a Prelims mark and weaken a Mains answer.
The numbers show the gap clearly. When the RBI raised the repo rate to 5.50% on 7 October 2026, the corridor's floor rose to 5.25%. The fixed reverse repo rate stayed at 3.35%, far below the rates that now guide the system.
Here's the thing: these four terms are simple once you ask two questions. Which way is the money moving? Is the tool a price or a quantity? At Legacy IAS Academy, we teach this topic around those questions, and it maps directly to the GS Paper III syllabus.
Repo Rate, CRR and SLR: The Big Picture
The RBI manages money in the economy through two broad routes. Policy rates change the price of money for banks. Reserve ratios change the quantity of deposits banks can freely lend.
| Tool | Current Level | Type | Money or Asset Position |
|---|---|---|---|
| Repo Rate | 5.50% | Price | RBI lends to banks against government securities |
| Fixed Reverse Repo | 3.35% | Price | Banks park funds with the RBI against securities |
| SDF | 5.25% | Price | Banks park funds with the RBI without collateral |
| MSF | 5.75% | Price | Banks borrow overnight from the RBI at a higher rate |
| CRR | 3.00% | Quantity | Banks keep cash balances with the RBI |
| SLR | 18.00% | Quantity | Banks hold approved liquid assets themselves |
What Is the Repo Rate?
Repo stands for repurchase agreement. A bank sells government securities to the RBI, receives funds and agrees to buy those securities back at a set price. The repo rate is the interest cost built into that deal.
Take a simple example. If a bank borrows ₹100 crore overnight at 5.50%, it pays about ₹1.5 lakh in interest for that day. Raise the rate and that cost rises, which pushes the system towards costlier loans.
Why the Repo Rate Matters Most
- It is the policy rate set by the Monetary Policy Committee (MPC).
- It anchors the short-term interest rate corridor.
- Many floating-rate retail loans are linked to an external benchmark such as the repo rate, so changes reach borrowers at their next reset date.
Reverse Repo vs SDF: The Update You Must Know
The reverse repo is the opposite transaction. Banks place surplus funds with the RBI and receive government securities as collateral. For years, this rate marked the floor of the corridor.
The limitation was collateral: the RBI had to give securities every time it absorbed funds. An amendment to Section 17 of the RBI Act in 2018 allowed the RBI to absorb liquidity without collateral. On 8 April 2022, it launched the Standing Deposit Facility (SDF), which replaced the fixed reverse repo as the floor.
| Corridor Position | Instrument | Rate | Rule |
|---|---|---|---|
| Ceiling | Marginal Standing Facility | 5.75% | Repo + 25 bps |
| Centre | Policy Repo Rate | 5.50% | Set by the MPC |
| Floor | Standing Deposit Facility | 5.25% | Repo − 25 bps |
Write "the SDF is the floor of the LAF corridor, while the fixed reverse repo remains at 3.35%". This one sentence shows the examiner that your notes are current.
What Is CRR (Cash Reserve Ratio)?
CRR is the share of a bank's Net Demand and Time Liabilities (NDTL) that it must keep as cash balances with the RBI. NDTL broadly means the bank's deposits and similar liabilities. The legal basis is Section 42 of the RBI Act, 1934.
- The current CRR is 3.00% of NDTL.
- The RBI pays no interest on these balances, so CRR is a direct cost for banks.
- A cut releases funds for lending, while a hike takes them out of the lending pool.
What Is SLR (Statutory Liquidity Ratio)?
SLR is the share of NDTL that a bank must hold in approved liquid assets, such as cash, gold and eligible government securities. The legal basis is Section 24 of the Banking Regulation Act, 1949, and the ceiling is 40%. The current SLR is 18.00%.
Banks hold these assets themselves, and government securities earn a return. SLR therefore protects depositors and creates steady demand for government bonds. Critics argue that a high SLR can crowd out private credit, while supporters stress its safety role, so present both views in Mains.
CRR vs SLR on ₹100 of Deposits
- Start with ₹100 of NDTL.
- Keep ₹3 with the RBI as CRR, earning no interest.
- Hold ₹18 in approved assets for SLR, mostly earning a return.
- About ₹79 remains after these two requirements, although other rules and business needs also shape actual lending.
| Point | CRR | SLR |
|---|---|---|
| Form | Cash balances | Cash, gold, eligible securities |
| Held with | RBI | The bank itself |
| Return | None | Securities earn a return |
| Law | Section 42, RBI Act, 1934 | Section 24, Banking Regulation Act, 1949 |
| Main role | Control liquidity | Maintain bank liquidity and solvency buffers |
How These RBI Tools Affect the Economy
Let's be honest: this is where confusion usually starts, especially when you have revised the topic three times and the directions still blur. Use one rule. Tightening makes money costlier or scarcer, while easing does the reverse.
| RBI Move | Direct Effect | Likely Result |
|---|---|---|
| Raise repo rate | Costlier funds for banks | Slower credit demand, lower inflation pressure |
| Cut repo rate | Cheaper funds for banks | Stronger credit demand and growth support |
| Raise CRR | More cash locked with the RBI | Less liquidity for lending |
| Cut CRR | Cash released to banks | More liquidity for lending |
| Raise SLR | More funds held in approved assets | Less room for private credit |
| Cut SLR | Fewer funds tied to approved assets | More room for private credit |
Do not memorise six separate effects. Understand one chain: the RBI changes the cost or availability of bank funds, banks adjust credit, and demand responds. — Legacy IAS Faculty
Who Decides What?
- Repo rate: The six-member MPC, set up under Section 45ZB of the RBI Act, decides it.
- SDF and MSF: These sit 25 basis points below and above the repo rate.
- CRR and SLR: The RBI prescribes these under the banking and RBI laws, separately from the MPC's policy rate vote.
- Inflation target: The government, in consultation with the RBI, has retained 4% with a 2–6% band for 1 April 2026 to 31 March 2031.
October 2026 Policy: Your Current Affairs Hook
This decision gives you a fresh example for both Prelims and Mains. Track later changes through our Daily Current Affairs and PIB Summaries.
- The MPC unanimously raised the repo rate by 25 bps to 5.50%, the first hike since February 2023.
- The stance moved from neutral to calibrated tightening by a 4–2 vote, which rules out near-term rate cuts.
- The RBI projected FY27 GDP growth at 7.1% and CPI inflation at 5.2%.
- The next MPC meeting is scheduled for 2–4 December 2026.
The Mains Angle: Can a Rate Hike Fix Every Inflation?
Rate hikes work mainly by cooling demand. They cannot directly produce more crude oil or food, so their effect is limited when supply shocks drive prices. Hikes can still help by anchoring inflation expectations and limiting second-round effects, but they may also slow borrowing and growth. A good answer weighs both sides.
Prelims Traps to Avoid
- Corridor floor: It is the SDF, not the fixed reverse repo.
- Collateral: Repo and reverse repo use securities, but the SDF does not need collateral.
- Interest: The RBI pays nothing on CRR balances, while SLR securities earn a return.
- Location: CRR balances stay with the RBI, while SLR assets stay with the bank.
- Legal source: CRR falls under the RBI Act, and SLR falls under the Banking Regulation Act.
- SDF treatment: SDF deposits do not count towards CRR, but they do count as eligible assets for SLR.
- Monetary vs fiscal: UPSC Prelims 2015 tested this by listing bank rate and open market operations with public debt and public revenue.
- Bank Rate: It is a separate rate, though currently aligned with the MSF at 5.75%.
Practise these distinctions in our Daily Static Quiz and subject-wise PYQs. The Prelims Test Series will then test them under exam pressure.
Mains Practice Question
"Monetary tightening is necessary but not sufficient to control inflation driven by supply shocks." Critically examine with reference to India's monetary policy framework. (15 marks, 250 words)
- Introduction: Mention flexible inflation targeting and the 4% target with a 2–6% band.
- Why tightening helps: Explain the repo channel, demand restraint and anchored expectations.
- Where it falls short: Discuss fuel and food shocks that interest rates cannot directly fix.
- Costs: Cover higher borrowing costs and possible pressure on growth.
- Way forward: Combine monetary policy with supply-side action, buffer management and fiscal coordination.
Write this once within the time limit, then compare it with our Mains Practice Questions. For regular evaluation, see the Mains Test Series.
Where to Read More
- GS3 Economy Notes, for the wider banking and monetary framework
- Indian Economy Current Affairs, for subject-wise updates
- Best Books for UPSC, for your standard reading list
- UPSC Prelims Syllabus, to place this topic in your plan
Frequently Asked Questions
What is the difference between repo rate and reverse repo rate?
In a repo, the RBI lends to banks at 5.50%. In a fixed reverse repo, banks place funds with the RBI at 3.35%. In current operations, the 5.25% SDF serves as the floor of the corridor.
Has the SDF abolished the reverse repo?
No. The fixed reverse repo rate still exists at 3.35%, but the SDF replaced it as the floor of the LAF corridor in April 2022.
Which is costlier for banks, CRR or SLR?
CRR is generally costlier because the RBI pays no interest on those balances. SLR securities earn a return, although they also limit the funds available for private lending.
Does a repo rate hike raise home loan EMIs immediately?
Not always. Repo-linked floating loans usually change at the next reset date, and banks may adjust the EMI, the loan tenure or both.
Does the MPC decide CRR and SLR?
The MPC's statutory task is to set the policy rate needed to achieve the inflation target. CRR and SLR are prescribed by the RBI under their respective laws.
Ready to begin? Legacy IAS offers both Classroom and Online batches across Bengaluru and pan-India.
Key Takeaways
- Correct your notes today: the SDF, not the fixed reverse repo, is the floor of the corridor.
- Sort every tool by asking whether it changes the price or the quantity of bank funds.
- Memorise the current ladder: SDF 5.25%, repo 5.50%, MSF 5.75%.
- Separate CRR (with the RBI, no interest) from SLR (with the bank, securities earn a return).
- Use the October 2026 hike in Mains, and recheck the rates after the December 2026 meeting.
- In inflation answers, explain why rate hikes have limited power over supply shocks.
