RBI Uses FX Swaps to Drain Rupee Liquidity

The immediate market impact has been a rise in forward premiums, with September and October swap points jumping and pulling up term premiums across maturities. That is significant for banks, corporates and investors because the pricing of forwards influences hedging costs, imported-inflation expectations and the economics of dollar funding in Asia’s third-largest economy.

The operation also highlights a broader policy problem: India’s banking system is awash with rupees after lenders raised about $128 billion in non-resident deposits, far more than anticipated. Gaura Sen Gupta, chief economist at IDFC FIRST Bank, estimated structural surplus liquidity has peaked at 14 trillion rupees to 15 trillion rupees, or roughly $147 billion to $158 billion. That kind of overhang can push overnight rates below the policy corridor and weaken the central bank’s control over short-term money-market conditions.

The RBI had already signaled it wanted to drain roughly 7 trillion rupees through variable rate reverse repos and more durable tools, but a 30-day VRRR earlier this week drew weak demand. That left FX swaps as a faster, more flexible option. Bank treasury officials said the central bank may be using the swaps partly to buy time while it calibrates a broader liquidity strategy.

For investors, the message is twofold. First, the RBI is unlikely to tolerate a sustained liquidity glut that would cheapen funding and potentially fuel excess credit or speculative flows. Second, the use of swaps could help reduce the central bank’s sizeable net short-dated forward book, which stood at about $137 billion at the end of July, including $47.6 billion due within a year. Shrinking that exposure would lower rollover pressure and improve the balance between cash management and FX intervention.

The bull case for markets is that the RBI’s action supports a more orderly money market and preserves the policy framework without forcing a sharper outright tightening. The bear case is that repeated use of swaps may only defer the adjustment, leaving the system still liquid and keeping pressure on forwards, while exposing the central bank to a larger unwind later.

With rupee deposits still flowing in and banks still holding abundant cash, the RBI’s next moves will determine whether liquidity normalizes gradually or remains a source of volatility in Indian rates and FX markets.