RBI Liquidity Tightening Lifts Weighted Average Call Rate by 12 bps to 5.43%

The Reserve Bank of India’s (RBI) coordinated efforts to absorb surplus liquidity from the domestic banking system have triggered an immediate hardening in short-term borrowing costs. On Monday, the weighted average call money rate (WACR)—the central bank’s primary operating target for monetary policy—jumped by 12 basis points (0.12 percentage points).

According to data from the Clearing Corporation of India (CCIL), the WACR closed at 5.43%, up from 5.31% recorded on October 9. The sharp uptick represents a decisive step toward closing the spread between overnight interbank lending rates and the benchmark policy repo rate, which was hiked by 25 basis points to 5.50%.

Closing the Policy Gap

Prior to the liquidity drain, substantial cash surpluses in the banking system had created a persistent overhang, blunting the transmission of monetary tightening. With the banking system liquidity surplus hovering at ₹3.88 trillion as of October 8, overnight money market rates had frequently languished near the Standing Deposit Facility (SDF) rate of 5.25%, which forms the lower bound of the liquidity adjustment facility corridor.

RBI Governor Sanjay Malhotra emphasized following the Monetary Policy Committee review that the central bank would deploy an appropriate mix of liquidity-management tools to anchor the WACR directly to the repo rate. Monday's 12-bps rise indicates that the central bank's liquidity stance is taking hold across uncollateralized lending desks.

Key Liquidity Absorption Measures:

• Elevated Daily CRR Maintenance: The central bank increased the mandatory minimum daily Cash Reserve Ratio (CRR) maintenance requirement from 90% to 99% of the prescribed balance, effective from the fortnight beginning October 16. The move curtails banks' day-to-day flexibility to hold back cash reserves until the end of a reporting cycle.
• Open Market Operation (OMO) Sales: The RBI scheduled an open market sale of government securities worth ₹25,000 crore on October 13 to durably absorb liquidity.
• Variable Rate Reverse Repo (VRRR) Auctions: Short-term absorption auctions, including multi-day VRRR windows, continue to be actively deployed to mop up transient surplus funds.

Implications for Borrowers and Investors

Excess liquidity weakens monetary policy transmission because commercial lenders sitting on surplus cash have diminished reliance on wholesale market borrowings and can fund asset growth without immediately raising deposit rates.

By draining excess liquidity, the RBI is accelerating rate transmission across the broader financial system. Key implications include:

Faster Repricing of Loans and Deposits: As overnight call rates align with 5.50%, banks face heightened pressure to reprice external benchmark-linked lending rates (EBLRs) and marginally adjust deposit offerings to retain institutional and retail funds.

Yields on Short-Term Paper: The firming of the call rate has immediate spillover effects on other money market gauges, including TREPS (tri-party repos), commercial paper (CPs), and certificates of deposit (CDs). Yields at the shorter end of the sovereign curve and three-month debt instruments are expected to adjust upward, reflecting reduced system liquidity.

Mutual Fund Asset Allocation: With liquidity conditions firming and the central bank adopting a tightening stance, asset management companies have started reducing portfolio duration in favor of short-term, high-quality corporate bonds and liquid debt segments to manage volatility.

Tags: Reserve Bank of India Clearing Corporation of India Money Markets Indian Banking Sector Fixed Income