💸 Liquidity Management & Policy Rates
RBI's Liquidity Corridor, LAF (Repo, Reverse Repo, MSF, SDF, LTRO, TLTRO), WMA, MSS, Call/Notice/Term Money, IBL Limits, and Monetary Aggregates (M1-M4).
Repo and Reverse Repo
To control the flow of money in the economy, the Reserve Bank of India (RBI) constantly manages the available funds (liquidity) in the banking system.
- RBI purchases and sells govt. securities to manage liquidity. By buying securities, the RBI injects cash into the market, and by selling them, it absorbs excess cash.
- There are 2 legs of the transaction. Repo is a contract to sell securities for purchase in future at a given price, on a given date. This dual-nature ensures that these transactions are essentially short-term, collateralized loans rather than permanent sales.
Repo Transaction
The term Repo stands for Repurchase Agreement, which acts as a mechanism for banks to raise short-term funds from the central bank.
- Action: Purchase of Govt. securities by RBI from banks. These securities will be repurchased by banks in future, at a given price, on a given date.
- Eligible Securities: Only RBI-approved government securities qualify as collateral — Central Government dated securities, Treasury Bills (T-Bills), State Development Loans (SDLs), and other RBI-notified securities. Corporate bonds or private paper are not eligible.
- Effect: It increases liquidity with banks. This extra cash allows banks to lend more money to individuals and businesses, stimulating economic growth.
- Rate: It is carried at Repo rate. The Repo rate acts as the benchmark Policy Rate, signaling the RBI's monetary stance to the broader economy.
- (Banks → [Sell Securities] → RBI; RBI → [Cash] → Banks)
Reverse Repo Transaction
If the Repo is for injecting funds, the Reverse Repo does the exact opposite—it drains excess funds from the banks.
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Repo and Reverse Repo
To control the flow of money in the economy, the Reserve Bank of India (RBI) constantly manages the available funds (liquidity) in the banking system.
- RBI purchases and sells govt. securities to manage liquidity. By buying securities, the RBI injects cash into the market, and by selling them, it absorbs excess cash.
- There are 2 legs of the transaction. Repo is a contract to sell securities for purchase in future at a given price, on a given date. This dual-nature ensures that these transactions are essentially short-term, collateralized loans rather than permanent sales.
Repo Transaction
The term Repo stands for Repurchase Agreement, which acts as a mechanism for banks to raise short-term funds from the central bank.
- Action: Purchase of Govt. securities by RBI from banks. These securities will be repurchased by banks in future, at a given price, on a given date.
- Eligible Securities: Only RBI-approved government securities qualify as collateral — Central Government dated securities, Treasury Bills (T-Bills), State Development Loans (SDLs), and other RBI-notified securities. Corporate bonds or private paper are not eligible.
- Effect: It increases liquidity with banks. This extra cash allows banks to lend more money to individuals and businesses, stimulating economic growth.
- Rate: It is carried at Repo rate. The Repo rate acts as the benchmark Policy Rate, signaling the RBI's monetary stance to the broader economy.
- (Banks → [Sell Securities] → RBI; RBI → [Cash] → Banks)
Reverse Repo Transaction
If the Repo is for injecting funds, the Reverse Repo does the exact opposite—it drains excess funds from the banks.
- Action: Sale of Govt. securities by RBI to banks. Here, the RBI gives securities to the banks and takes their surplus cash in return.
- Effect: It reduces liquidity with banks. With less money available to lend, credit becomes tighter, which helps control inflation.
- Rate: It is carried at Reverse Repo rate. This is the interest rate the RBI pays to the banks for parking their money.
- It is lower than repo rate. This ensures that borrowing from the RBI is costlier than lending to the RBI, encouraging banks to lend to the public instead of just parking funds.
- (Banks → [Cash] → RBI; RBI → [Sell Securities] → Banks)
Fixed Reverse Repo Rate: The Fixed Reverse Repo Rate is the interest rate at which the RBI borrows money from commercial banks on an overnight basis. The "fixed" part refers to the fact that the rate, currently 3.35%, remains constant through various market conditions and has been unchanged since May 2020. With the introduction of SDF in April 2022, the Reverse Repo has become a legacy rate and is no longer the floor of the corridor. It has now been replaced by the SDF as the primary tool for absorbing liquidity without needing collateral.
Liquidity Adjustment Facility (LAF)
The Liquidity Adjustment Facility (LAF) is the primary instrument used by the RBI to manage day-to-day liquidity in the banking system and transmit interest rate signals. Think of the LAF as a crucial toolkit that helps fine-tune the amount of money circulating every single day. It allows banks to borrow money (Repo) or park excess funds (Reverse Repo) with the RBI against the collateral of Government Securities. By tweaking these rates, the RBI manages inflation and growth effectively.
1. Short Term LAF
This is the most common tool used to manage immediate day-to-day cash requirements.
- Nature: A Short term loan given by RBI to commercial banks to help them tide over immediate liquidity mismatches. It acts as a primary bridging mechanism.
- Mechanism: It operates through Repo (for borrowing) and Reverse Repo (for depositing) windows.
- ROI: Funds are provided at the prevailing Repo Rate.
- Time: The duration is 1 day, although RBI retains the discretion to extend it. This means it's an overnight facility, meant for extremely urgent, short-lived needs.
- Overall amount: Access is capped at 0.25% of NDTL (Net Demand and Time Liabilities) of the banking system. This cap prevents banks from becoming over-reliant on the central bank for their daily cash flow.
2. Term LAF
When banks need money for a slightly longer timeframe, they turn to Term LAF.
- Period: These operations run for longer tenors, typically 14 days and 7 days, as decided by RBI. This gives banks more breathing room to manage their balance sheets.
- System: Conducted through auctions on the E-Kuber platform (RBI's CBS, or Core Banking Solution). E-Kuber is the central hub for all major transactions with the RBI.
- Total amount: The aggregate limit is set at 0.75% of NDTL of the banking system.
- Min bid amount: Participation requires a minimum bid of Rs. 1 cr (and multiples thereof). This ensures that the facility is used for significant institutional transactions.
3. Long Term Repo Operations (LTRO)
The LTRO tool was introduced to inject money into the system for much longer periods without forcing banks to pay exorbitant interest rates.
- Objective: To provide durable liquidity to the banking system, helping deeper transmission of policy rates. When banks have a guaranteed low-cost source of funds for years, they are more willing to pass down the low rates to everyday borrowers.
- Tenor: Between 1 to 3 years at the prevailing Repo Rate, allowing banks to lock in funds at a low cost for a longer duration.
- Structure: The scheme, launched on 15.02.2020, operates in addition to standard LAF and MSF facilities and is conducted via the E-Kuber (RBI-CBS) platform.
- Requirements: The minimum bid amount is Rs. 1 cr (and multiples thereof). The eligible collateral and haircuts remain the same as in the case of normal LAF operations.
4. Targeted LTRO (TLTRO on Tap Scheme)
While LTRO provides general liquidity, TLTRO acts like a laser-guided injection.
- Purpose: Liquidity is provided on the condition that banks invest it in specific sectors or instruments like corporate bonds, Commercial Paper (CP), and Non-Convertible Debentures (NCDs). This ensures funds reach specific productive sectors that urgently need capital.
- HTM Benefit: Banks can classify these investments as Held to Maturity (HTM) even if they exceed the 25% limit of total investments. Because they don't have to mark these to market, this creates demand for corporate bonds by protecting banks from market price valuation losses.
- Timeline & Extensions: Announced on Oct 09, 2020, the scheme was initially available for 5 sectors up to March 31, 2021. It was later expanded to include 26 stressed sectors identified by the Kamath Committee (Dec 2020) and further extended to NBFCs (Feb 2021). This adaptability allowed the RBI to address specific pain points in the post-pandemic economy.
Key Difference: LTRO vs. TLTRO
- LTRO: General liquidity injection. Banks can use the funds anywhere (loans, investments, etc.).
- TLTRO: Targeted injection. Banks MUST invest the funds in specific sectors or instruments (Bonds, CP, NCDs) as mandated by RBI. It ensures credit flows to sectors that are facing a cash crunch.
5. Marginal Standing Facility (MSF)
Consider the MSF as the emergency room for banks. It is for those situations when a bank is completely parched for liquidity and has maxed out its regular Repo borrowing limits.
- Nature: Short term advance (Overnight) from RBI to commercial banks (wef 9.5.2011). It serves as a safety valve for banks to borrow funds when they have exhausted all other borrowing options.
- ROI: Repo rate + 0.25%. This penal rate acts as the upper bound (ceiling) of the Liquidity Adjustment Facility (LAF) corridor. Because it's an emergency lifeline, the RBI charges a premium.
- Min amount: Rs. 1 cr (multiple 1 cr). The minimum threshold ensures the facility is primarily used for significant liquidity needs.
- Extent: Up to 2% of NDTL (outstanding on 2nd preceding fortnight). Crucially, banks are permitted to dip into their Statutory Liquidity Ratio (SLR) portfolio limit to avail funds under this facility—something strictly prohibited under standard Repo operations.
- Period: Overnight (on Friday for 3 days). As an emergency window, it provides funds for one day or over the weekend if accessed on a Friday.
- Available: Monday to Friday (3 to 4 pm). Requests must be placed during these specific banking hours.
6. Standing Deposit Facility (SDF)
The SDF represents a major shift in how the RBI mops up excess money.
- Introduced: 08.04.22 (Proposed by Urjit Patel Committee). It was introduced to manage post-pandemic liquidity surplus and required a 2018 amendment to Section 17 of the RBI Act to allow RBI to accept deposits without collateral.
- Purpose: RBI absorbs excess liquidity from commercial banks without exchange of collateral (unlike Reverse Repo). By removing the "collateral constraint" (providing G-Secs in return for funds), the SDF allows RBI to absorb unlimited liquidity. This is extremely important when the market is flooded with cash and the RBI is running out of securities to offer in return.
- Rate: It keeps on changing, as per market conditions, typically set slightly below the Repo Rate.
- It replaces Reverse Repo in which collateral is exchanged. The traditional Reverse Repo is now basically a legacy instrument.
- Now, it acts as the floor of the policy corridor.
- MSF vs. SDF (Borrowing vs. Depositing): MSF is for banks that NEED money (Borrowing, Ceiling rate), while SDF is for banks that HAVE EXTRA money (Depositing, Floor rate). The gap between them is the "Liquidity Corridor" with the Repo Rate sitting exactly in the middle.
- Period: It is primarily an overnight standing facility for end-of-day liquidity management, but RBI can notify longer tenors.
- Availability: On all days including Sunday/Holidays. This ensures a friction-less, 24x7 mechanism for banks to park excess funds.
Market Stabilization Scheme (MSS) / Sterilization Operation
Sometimes, it's not domestic action, but international fund flows that disrupt the Indian market. MSS is the RBI's tool to counter this.
- Purpose: MSS is primarily used for exchange rate and monetary management to handle large capital inflows that can disrupt domestic liquidity.
- Sterilization: It neutralizes the excess liquidity created when RBI purchases foreign currency.
- How it works: When foreign currency (FC) flows into India, RBI buys it to prevent Rupee appreciation, releasing INR into the system (increasing liquidity). To "sterilize" or remove this excess INR, RBI sells MSS bonds to suck out the liquidity. The term "sterilization" essentially refers to cleaning up the unwanted side-effects of currency intervention.
- Instrument: The government issues MSS Bonds (which are similar to Treasury Bills and dated securities) specifically for this purpose.
- Accounting: Unlike regular borrowing, the funds raised via MSS are not credited to the Government's regular account for spending. Instead, they are held in a separate identifiable cash account with the RBI and are used only for redeeming these bonds. This ensures that the cash is temporarily locked away.
- Max Amount: The ceiling is mutually agreed upon by the RBI and Govt. The typical limit is Rs. 30,000 cr (with a review threshold at Rs. 15,000 cr), but this can be hiked significantly during crisis periods (e.g., enhanced to Rs. 6,00,000 cr during Demonetization and Covid).
Ways and Means Advances (WMA)
While the LAF helps commercial banks, the WMA helps the Government itself.
- Definition: Temporary Overdraft (OD) given by RBI to Govt. It is essentially a short-term credit facility.
- Purpose: For meeting temporary mismatch in Govt. receipts and payments. Think of it like a credit card for the government—when tax revenues are delayed but expenses (like salaries) are due immediately.
- ROI: Repo Rate. Loans under the WMA limit are charged standard rates.
- ROI on Overdraft (OD): Repo Rate + 2% (charged when the government exceeds the agreed WMA limit).
- Time: 10 days for Central Govt. and 14 days for State Govt. This short duration underscores that it is purely for transitional cash-flow issues.
- Consolidated limit for State Govts: 32225 cr + 60% of the total limit of State Govts.
- Fresh Loans: When the government utilizes 75% of its WMA limit, the RBI triggers the issuance of fresh market loans (dated securities) to raise funds and prevent the government from exceeding the overdraft limit.
WMA Limits for Central Govt (2025-26)
The WMA limit is determined periodically based on projected government expenditure and revenue patterns.
- 1st Half (1.4.25 to 30.9.25): Rs. 1,50,000 cr. Usually higher in the first half because government receipts like tax collections typically peak later in the year.
- 2nd Half (1.10.25 to 31.3.26): Rs. 50,000 cr.
Call and Notice Money Limits
The inter-bank market for short-term funds is classified based on the duration of the loan. This is how banks lend and borrow money among themselves without involving the RBI.
- Call Money: Funds borrowed or lent for a period of 1 day (overnight). It is the most heavily traded segment.
- Notice Money: Funds borrowed or lent for a period between 2 days and 14 days.
- Term Money: Funds borrowed or lent for a period exceeding 14 days.
These limits are placed to ensure that banks/entities do not become overly reliant on volatile short-term inter-bank funding.
For Borrowing
To prevent institutions from over-leveraging themselves in the short-term market, strict limits are maintained:
- Commercial Banks: Borrowing is left to bank discretion, subject to their internal board-approved policies and within prudential limits.
- SFBs and Payment Banks: These newer, smaller banks face tighter constraints to guarantee stability.
- Daily Average: On a fortnightly average basis, borrowing is capped at 100% of capital funds (Tier 1 + Tier 2 capital).
- Single Day: On any given day, they can borrow up to 125% of capital funds.
- Cooperative Banks: The limit is set at 2% of aggregate deposits as of the end of the previous financial year.
- Primary Dealers (PD): (RBI-authorized entities dealing in G-Secs) PDs can borrow up to 225% of their Net Owned Funds (NOF) (paid-up capital + free reserves - losses) as of the end of the previous financial year.
For Lending
- Bank Discretion: Banks have the freedom to decide their lending limits in the call money market based on their own risk assessment and board policies. It is viewed as less risky to lend excess funds than to rely constantly on borrowing.
Inter-bank Liabilities (IBL)
When one bank borrows heavily from another, it creates a systemic risk. If deeply indebted Bank A fails, it takes Bank B (the lender) down with it. That is why IBL limits exist. To limit contagion risk (where the failure of one bank drags down others), RBI prescribes limits on how much a bank can owe to other banks.
- Definition: IBL covers all liabilities including call, notice, term money, and other fund/non-fund exposures to the banking system.
- General Limit: A bank's total inter-bank liability limit is capped at 200% of its Net Worth (as of 31st March of the previous year).
- Special Limit: For banks with a strong capital position (CRAR > 11.25%, which is 25% higher than the regulatory minimum of 9%), the limit is enhanced to 300% of Net Worth. This means well-capitalized, healthier banks are allowed a little more borrowing freedom.
- Note: These umbrella limits apply to the total borrowing across all inter-bank market segments, including the Call Money market.
Monetary Aggregates
Monetary aggregates are statistical measures used by the RBI to track the total amount of money circulating in the economy. They help in formulating monetary policy by indicating liquidity levels and potential inflationary pressures. The current framework was recommended by the YV Reddy Working Group in 1998.
4 Indicators of money supply (YV Reddy Group 1998)
-
M1 (Narrow Money): Currency with public + Demand deposits with banks + Other deposits with RBI.
- This represents the most liquid form of money—cash in people's pockets plus money that can be withdrawn instantly from current/savings accounts without notice. It includes coins, currency notes, and demand deposits (like current accounts) that can be accessed immediately.
-
M2: M1 + Savings deposits with Post Office savings banks.
- M2 adds Post Office savings deposits (excluding Time Deposits and NSC) to M1. Post office savings are highly liquid but slightly less so than bank demand deposits, hence classified separately.
-
M3 (Broad Money): M1 + Time deposits with banks.
- This is the most commonly watched measure of money supply in India. It includes all of M1 plus time deposits (Fixed Deposits, Recurring Deposits) with banks. Time deposits are less liquid than demand deposits since they have a fixed maturity period. M3 is often used as a proxy for total money supply in the economy because it accurately reflects overall bank credit behavior.
-
M4: M3 + Total deposits with Post Offices (excluding National Savings Certificates).
- M4 is the broadest measure of money supply. It adds all post office deposits (savings + time deposits) except NSC to M3. NSC is excluded because it has a long lock-in period and is more like an investment than a liquid deposit.
Key Concept: M1 → M4 represents increasing "breadth" but decreasing "liquidity". M1 is the most liquid (can be spent immediately), while M4 includes deposits that may take time to convert to cash.
Summary Cheat Sheet
LAF at a Glance
| Facility | Tenor | Limit | Min Bid | Key Feature |
|---|---|---|---|---|
| Short Term LAF | 1 day | 0.25% of NDTL | — | Overnight liquidity |
| Term LAF | 7/14 days | 0.75% of NDTL | ₹1 cr | Auction via E-Kuber |
| LTRO | 1–3 years | — | ₹1 cr | Durable liquidity at Repo rate |
| TLTRO | — | — | — | Targeted: Must invest in bonds/CP/NCDs |
| MSF | Overnight | 2% of NDTL | ₹1 cr | Emergency @ Repo+0.25%, 3–4 PM |
| SDF | Overnight | Unlimited | — | No collateral, Floor rate |
WMA Quick Reference
| Parameter | Central Govt | State Govt |
|---|---|---|
| ROI | Repo Rate | Repo Rate |
| OD Rate | Repo + 2% | Repo + 2% |
| Max Period | 10 days | 14 days |
| Fresh Loan Trigger | 75% WMA utilized | 75% WMA utilized |
| 2025-26 Limit (H1) | ₹1,50,000 cr | — |
| 2025-26 Limit (H2) | ₹50,000 cr | — |
Call/Notice/Term Money Limits
| Entity | Borrowing Limit |
|---|---|
| Commercial Banks | Bank discretion |
| SFBs/Payment Banks | 100% of capital (avg), 125% (single day) |
| Cooperative Banks | 2% of aggregate deposits |
| Primary Dealers | 225% of NOF |
Inter-Bank Liability (IBL) Limits
| CRAR | IBL Limit |
|---|---|
| ≤ 11.25% | 200% of Net Worth |
| > 11.25% | 300% of Net Worth |
Market Stabilization Scheme (MSS)
| Feature | Detail |
|---|---|
| Purpose | Sterilize excess liquidity from FC inflows |
| Instrument | MSS Bonds (T-Bills/Dated Securities) |
| Normal Limit | ₹30,000 cr |
| Crisis Limit | Up to ₹6,00,000 cr (Demonetization/Covid) |
| Funds Held | Separate RBI account (not Govt spending) |
Monetary Aggregates
| Aggregate | Components | Liquidity |
|---|---|---|
| M1 | Currency + Demand Deposits + RBI deposits | Highest |
| M2 | M1 + PO Savings | ↓ |
| M3 | M1 + Bank Time Deposits | ↓ (Most watched) |
| M4 | M3 + All PO Deposits (excl. NSC) | Lowest |
Key Exam Points
| Concept | Remember |
|---|---|
| Corridor Width | 50 bps (MSF to SDF) |
| SDF Proposer | Urjit Patel Committee |
| MSF Timing | Mon-Fri, 3–4 PM |
| MSF Available Days | 1 day (3 days if Friday) |
| SDF Available Days | All days including Sunday/Holidays |
| YV Reddy Group | 1998 (Money supply indicators) |
| M3 | Most commonly watched money supply |
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