RBI May Expand OMO Debt Sales to Absorb Liquidity Following Milestone ₹50,000 Crore Auction

The Reserve Bank of India (RBI) could step up open market debt sales over the coming weeks as it moves aggressively to drain surplus cash from the domestic banking system. The projection comes after the central bank executed the first tranche of its open market operation (OMO) sales on Thursday, offloading ₹50,000 crore worth of government securities. The auction marked the central bank's first scheduled OMO debt sale through this route in nine years, drawing strong participation from market intermediaries.

The auction is part of a larger ₹1 lakh crore liquidity absorption program announced by the RBI on September 11. The remaining ₹50,000 crore will be drained in two separate tranches of ₹25,000 crore each on September 21 and September 28.

Surge in Banking System Cash Drives OMO Route

Liquidity in India's banking system swelled to record levels earlier this month, reaching a peak of ₹11.6 trillion on September 6. The deluge of funds was primarily propelled by aggressive foreign exchange inflows, government spending, and strong deposit mobilization under Foreign Currency Non-Resident (Bank), or FCNR(B), schemes.

Although tax outflows and foreign exchange interventions have trimmed the surplus to around ₹7.4 trillion to ₹10.4 trillion, the excess cash continued to pull short-term borrowing costs down. The Weighted Average Call Rate (WACR)—the RBI's operating target—slid to around 5.02%, trading well below the repo rate of 5.25%.

Because earlier variable rate reverse repo (VRRR) operations and dollar-rupee swap facilities experienced limited appetite from commercial banks, the central bank opted for outright OMO bond sales to lock up surplus capital permanently.

Auction Results and Cutoff Yields:

• The RBI offered a basket of sovereign securities maturing between fiscal 2029 and fiscal 2032, including papers such as 7.59% GS 2029, 6.79% GS 2029, 7.61% GS 2030, 5.77% GS 2030, 6.68% GS 2031, and 8.28% GS 2032.
• Cutoff prices settled between ₹102.25 and ₹105.63 across the offered papers.
• Cutoff yields came in slightly above primary dealership forecasts, demonstrating that the market demanded an extra premium to digest the supply.

Impact on Bond Yields and Policy Transmission

RBI Governor Sanjay Malhotra recently reiterated that all policy instruments remain on the table to manage domestic liquidity conditions and anchor money-market rates. Market participants believe more bond sales could be authorized if interbank rates remain persistently detached from the policy repo rate.

Excess cash blunts the effectiveness of monetary policy by allowing banks to fund themselves cheaply without needing central bank credit. With traders pricing in a potential 25-basis-point policy adjustment at the upcoming October Monetary Policy Committee (MPC) review, absorbing the excess liquidity is necessary for rate decisions to transmit effectively across bank lending and deposit rates.

The immediate consequence of the supply influx has been felt across the yield curve. Following the auction, five-year benchmark bond yields climbed by roughly six basis points to trade near 6.83%, while the 10-year benchmark yield hover around 7.03%. Debt fund managers note that while elevated yields create headwind risks for bond fund durations in the immediate term, they offer attractive reinvestment yields for debt mutual funds and institutional treasury desks over the medium horizon.

Tags: Reserve Bank of India Indian Bond Market Banking Sector Monetary Policy Government Securities