Why too much money in the banking system is a problem for the RBI

Economy - Monetary Policy · 7 September 2026 · Based on Indian Express (original report)

2-minute summary

The Reserve Bank of India (RBI) is facing a significant monetary challenge as banking system liquidity reached a four-year high of approximately Rs 10.3 lakh crore in September 2026. This surge was primarily driven by massive foreign-currency inflows through the RBI's special US dollar-rupee foreign exchange swap facility, particularly via Foreign Currency Non-Resident (B) [FCNR(B)] deposits, which were exempted from Cash Reserve Ratio (CRR) and Statutory Liquidity Ratio (SLR) requirements. While these inflows strengthen India's capital account, they create an unencumbered pool of rupee liquidity that exerts downward pressure on overnight money-market rates, threatening to push them below the policy repo rate. This loose liquidity environment complicates the RBI's efforts to control inflation, which is projected to peak at 5.9% in Q3 2026-27. To drain this excess cash without destabilizing the bond market, the RBI is utilizing tools like Variable Rate Reverse Repo (VRRR) auctions, Open Market Operation (OMO) sales, and potentially temporary measures like the Incremental Cash Reserve Ratio (I-CRR).

Why it's in the news

Banking system liquidity in India surged to a four-year high of Rs 10.3 lakh crore on September 3, 2026, driven by massive foreign-currency inflows from the RBI's special USD-INR swap facility. This excess liquidity poses operational challenges for the RBI as it threatens to depress overnight interest rates below the policy repo rate and fuel inflationary pressures.

Background and context

Liquidity management is a core function of the Reserve Bank of India (RBI) to ensure that short-term interest rates remain aligned with the policy repo rate. Historically, the RBI has managed liquidity through the Liquidity Adjustment Facility (LAF) framework, which was introduced based on the recommendations of the Narasimham Committee (1998). The operating target of the RBI's monetary policy is the Weighted Average Call Rate (WACR). When liquidity is in deficit, the RBI injects funds via Repo auctions; when there is a surplus, it absorbs funds using Reverse Repo or the Standing Deposit Facility (SDF). Persistent surplus liquidity, such as that witnessed post-demonetisation in 2016 or during the COVID-19 pandemic, weakens monetary policy transmission. In 2023, the RBI temporarily introduced an Incremental Cash Reserve Ratio (I-CRR) to absorb surplus liquidity generated by the withdrawal of Rs 2,000 currency notes. The current 2026 surge presents a similar challenge, driven instead by external capital inflows and foreign exchange swap operations.

Committees and reports

Urjit Patel Committee (Committee to Revise and Strengthen the Monetary Policy Framework) — Recommended the adoption of flexible inflation targeting (FIT) and emphasized the alignment of the operating target (WACR) with the policy repo rate, which is directly impacted by systemic liquidity conditions.
Narasimham Committee II on Banking Sector Reforms — Recommended the introduction of the Liquidity Adjustment Facility (LAF) to facilitate liquidity management and short-term interest rate stability.

Previous UPSC questions on this theme

Prelims GS-1 2020 — If the RBI decides to adopt an expansionist monetary policy, which of the following would it not do ? 1. Cut and optimize the Statutory Liquidity Ratio 2. Increase the Marginal Standing Facility Rate 3. Cut the Bank Rate and Repo Rate Select the correct answer using the code given below : (a) 1 and 2 only (b) 2 only (c) 1 and 3 only (d) 1, 2 and 3
Prelims GS-1 2021 — In India, the central bank's function as the 'lender of last resort' usually refers to which of the following? 1. Lending to trade and industry bodies when they fail to borrow from other sources 2. Providing liquidity to the banks having a temporary crisis 3. Lending to governments to finance budgetary deficits Select the correct answer using the code given below. (a) 1 and 2 (b) 2 only (c) 2 and 3 (d) 3 only

Mains practice: Analyze the challenges posed by persistent excess liquidity in the banking system on monetary policy transmission and inflation management. Suggest policy measures that the Reserve Bank of India can deploy to address this.

Persistent excess liquidity refers to a situation where the banking system has surplus funds far exceeding credit demand. In late 2026, India's systemic liquidity hit a four-year high of Rs 10.3 lakh crore, primarily driven by foreign exchange swap inflows. While capital inflows strengthen the external balance sheet, excessive domestic liquidity poses severe policy challenges.

**Challenges of Excess Liquidity:**

• **Dilution of Monetary Policy Transmission:** Abundant liquidity drives short-term money market rates, such as the Weighted Average Call Rate (WACR), below the policy repo rate. This weakens the impact of a tight or neutral monetary stance.

• **Inflationary Pressures:** Loose liquidity increases the money supply, potentially fueling demand-pull inflation. This complicates the RBI's mandate to keep headline inflation within its target band (projected to peak at 5.9% in Q3 2026-27).

• **Asset Price Bubbles:** Unproductive surplus funds may flow into speculative assets like equities and real estate, raising financial stability concerns.

**Measures to Address Excess Liquidity:**

• **Variable Rate Reverse Repo (VRRR) Auctions:** The RBI can conduct short-term (overnight to 14-day) VRRR auctions to absorb transient surplus liquidity on a market-determined yield basis.

• **Open Market Operation (OMO) Sales:** Selling government securities in the secondary market permanently drains durable liquidity from the system.

• **Incremental Cash Reserve Ratio (I-CRR):** A temporary application of I-CRR on specific deposit growth can effectively freeze a large volume of unencumbered liquidity without permanently altering the headline CRR.

• **Forex Sterilization:** The RBI can gradually sell dollars in the spot market while allowing its forward-book short positions to mature, naturally absorbing rupee liquidity.

In conclusion, managing excess liquidity requires a calibrated mix of market-based and regulatory tools. The RBI must balance the trade-off between maintaining orderly financial markets and ensuring that surplus liquidity does not derail its primary objective of price stability.

Prelims practice questions

Q1. With reference to the liquidity management tools of the Reserve Bank of India (RBI), consider the following statements: 1. Variable Rate Reverse Repo (VRRR) auctions are used by the RBI to inject durable liquidity into the banking system. 2. An increase in the Cash Reserve Ratio (CRR) permanently absorbs durable liquidity from the banking system. 3. The Incremental Cash Reserve Ratio (I-CRR) is a temporary regulatory tool used to absorb sudden surges in systemic liquidity. Which of the statements given above are correct?

1 and 2 only
2 and 3 only
1 and 3 only
1, 2 and 3

Answer: B. Statement 1 is incorrect because VRRR is used to absorb (withdraw) liquidity, not inject it, and it is typically used for transient or short-term liquidity management rather than durable liquidity. Statement 2 is correct because changing the CRR is a direct and durable way to lock up or release banking funds. Statement 3 is correct as I-CRR is a temporary measure (as used in 2023) to absorb sudden, non-durable surges in liquidity.

Q2. Which of the following is the most likely consequence of persistent excess liquidity in the domestic banking system?

Overnight money-market rates face downward pressure and may fall below the policy repo rate.
Monetary policy transmission is strengthened as banks rapidly pass on rate hikes to borrowers.
The Weighted Average Call Rate (WACR) rises above the Marginal Standing Facility (MSF) rate.
The Reserve Bank of India is forced to conduct Open Market Operation (OMO) purchases.

Answer: A. Persistent excess liquidity means banks have surplus funds chasing limited avenues. This puts downward pressure on overnight money-market rates (like the call money rate), potentially pushing them below the policy repo rate. This weakens monetary transmission and forces the RBI to conduct OMO sales (not purchases) or VRRR auctions to absorb the surplus.

Q3. In the context of central banking, how do foreign currency buy-sell swap operations impact domestic liquidity?

They inject rupee liquidity into the banking system when the central bank buys foreign currency.
They permanently reduce the money supply by locking domestic currency in foreign accounts.
They automatically increase both the Cash Reserve Ratio (CRR) and Statutory Liquidity Ratio (SLR) of commercial banks.
They have no impact on domestic liquidity as they only involve foreign currencies.

Answer: A. When a central bank conducts a buy-sell swap (buying foreign currency like US dollars and selling domestic currency like Rupees), it releases equivalent rupees into the domestic banking system, thereby increasing domestic rupee liquidity. These deposits are not automatically subject to higher CRR/SLR unless specifically mandated.

Revision flashcards

What is the operating target of the RBI's monetary policy? The Weighted Average Call Rate (WACR), which is the rate at which banks lend overnight funds to each other.
How do OMO sales differ from OMO purchases in terms of liquidity impact? OMO sales involve the RBI selling government securities to absorb liquidity from the banking system, whereas OMO purchases involve buying securities to inject liquidity.
Why did the special USD-INR swap facility in 2026 cause a massive surge in rupee liquidity? The conversion of $136.377 billion of foreign inflows (mostly FCNR-B deposits) into rupees released massive liquidity, which landed unencumbered because these deposits were exempt from CRR and SLR requirements.
What is the primary risk of leaving excess banking liquidity unaddressed? It depresses overnight money-market rates below the repo rate, weakens monetary policy transmission, and adds to domestic inflationary pressures.
What is the Incremental Cash Reserve Ratio (I-CRR)? A temporary monetary tool requiring banks to maintain an additional cash reserve against a specific increase in their Net Demand and Time Liabilities (NDTL) over a defined period to absorb sudden excess liquidity.