When your deposit-attraction scheme works too well, you end up with a different problem entirely. That is roughly where the Reserve Bank of India finds itself right now, deploying short-term currency swaps to pull excess cash back out of a banking system it inadvertently flooded with rupee liquidity.
The RBI launched a facility on June 8, 2026, designed to attract foreign-currency non-resident deposits, known as FCNR(B) deposits, alongside external commercial borrowings. The goal was to bolster India’s foreign exchange reserves and provide support for the rupee during a period of capital outflows. The initial target was around $80 billion in inflows. What arrived was somewhere between $128 billion and $136 billion.
How a successful scheme created a new headache
The mechanics are worth understanding. When non-resident Indians and foreign depositors convert dollars into rupees to park money in these accounts, those rupees land in the domestic banking system. Do that at scale and the system suddenly has more liquidity than it knows what to do with.
By September 2026, estimates of the surplus rupee liquidity in India’s banking system ranged between 9.7 trillion and 15 trillion rupees. The RBI is targeting a drain of roughly 7 trillion rupees using a combination of tools, including variable-rate reverse repos, or VRRRs. The swap facility was so oversubscribed that the RBI closed it early, on August 31, 2026, before its originally scheduled end date.
The central bank is now running USD/INR sell-buy foreign exchange swaps to absorb that surplus. In a sell-buy swap, the RBI sells dollars to banks today and agrees to buy them back at a later date. Banks hand over rupees now, which effectively removes that cash from circulation temporarily.
On September 3, 2026, banks made their preferences known, asking the RBI to lean on these FX swaps rather than raising the cash reserve ratio. A CRR hike forces banks to park a larger share of deposits with the central bank earning nothing, directly compressing net interest margins. Swaps are easier to live with because they are temporary and carry no permanent cost to profitability. The RBI appeared to take that feedback on board, executing swaps estimated at around $700 million set to mature in September and October 2026.
What the rupee forward market is already signaling
Currency traders noticed. Near-term rupee forward premiums have already moved in response to the RBI’s swap activity. When the central bank sells dollars in the spot market and commits to buying them back forward, it shifts the supply-demand balance in the forward curve. The result is upward pressure on short-dated forward premiums.
Implications for banks and borrowers
Indian banks are watching this process with mixed feelings. On one hand, a liquidity surplus generally makes funding easier and cheaper. On the other hand, the instruments the RBI uses to drain that surplus each carry their own costs and constraints.
Variable-rate reverse repos, one of the RBI’s preferred drainage tools, require banks to park money with the central bank at rates determined by auction. The banking sector’s preference for FX swaps over a CRR hike reflects a broader desire to protect margins at a time when credit growth and lending rates remain sensitive topics.
The question now is whether the plumbing holds as maturities on those $700 million in swaps come due in September and October, and whether additional rounds will be needed to work through the rest of the surplus.
