RBI Announces Rs 1 Lakh Crore OMO Bond Sales to Drain Banking System Liquidity Surplus

The Reserve Bank of India (RBI) announced that it will conduct Open Market Operation (OMO) sales of government securities worth ₹1 lakh crore in three separate tranches. The move marks the central bank's first net open-market sale of sovereign debt in two years and is aimed at absorbing massive durable liquidity from an interbank system experiencing unprecedented cash surpluses.

The announcement followed remarks from RBI Governor Sanjay Malhotra indicating that the central bank would deploy a combination of tools to mop up surplus cash and keep interbank rates properly aligned with policy objectives.

Auction Structure and Schedule

The bond sales will be conducted through multi-security auctions using the multiple price method on the RBI Core Banking Solution (E-Kuber) system, offering securities with maturities spanning fiscal 2029 through fiscal 2032.

Tranche Schedule:

• September 17, 2026: Auction of government securities worth ₹50,000 crore.
• September 21, 2026: Auction of government securities worth ₹25,000 crore.
• September 28, 2026: Auction of government securities worth ₹25,000 crore.

For the initial auction on September 17, eligible participants will submit bids electronically between 9:30 am and 10:30 am, with the auction results announced on the same day.

Drivers of the Liquidity Glut

India's banking system has witnessed an enormous liquidity expansion, with net banking system surplus liquidity exceeding ₹10.4 lakh crore. This liquidity surge was primarily catalyzed by large-scale foreign currency inflows, where lenders raised over $127 billion under a dedicated foreign exchange mobilisation programme involving FCNR(B) deposits. Subsequent foreign exchange swaps and rupee conversions injected vast cash reserves into domestic banks.

The ensuing cash overhang pulled the weighted average call rate (WACR)—the central bank’s primary operating target—down to around 5.02%, settling noticeably beneath the 5.25% policy repo rate.

While the central bank conducted multiple Variable Rate Reverse Repo (VRRR) auctions to temporarily absorb funds, lender appetite remained subdued. For instance, a recent 26-day VRRR auction aimed at absorbing ₹5 lakh crore received bids worth only ₹60,449 crore, demonstrating banks' reluctance to lock up funds in transient reverse repos. This tepid response compelled the RBI to deploy permanent, durable absorption via OMO bond sales.

Impact on Bond Yields and Borrowing Costs

The news of ₹1 lakh crore in fresh paper entering the secondary market triggered a sharp sell-off in sovereign debt:

• The benchmark 10-year government bond yield rose by 5 to 6 basis points, breaching the 7% psychological barrier to trade around 7.01% to 7.035%, marking its highest level in over three months.
• Shorter-tenor paper saw pronounced pressure, with the 5-year benchmark yield climbing up to nearly 10 basis points to settle around 6.59% to 6.62%.

Fixed-income strategists observe that while draining durable cash helps sterilise inflationary risks from elevated global commodity and crude prices, the absorption of ₹1 lakh crore in supply will likely keep yields elevated in the 6.98% to 7.15% zone over the near term. Indian investors and corporate treasuries face higher yields on short- to medium-duration debt, alongside a tightening of money-market spreads back toward the central bank's policy rate corridor.

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