Has RBI Governor Interpreted Finance Minister’s Dreams Correctly? Checking on the Hidden Cost of RBI’s FCNR Gambit

The Reserve Bank of India has on 8th June announced a Special Swap Window enabling Banks to source FCNR deposits for three to five year tenors and swap them with RBI at a fixed rate, coterminous with the residual tenor of the deposits. The entire swap cost is to be borne by the RBI. This is yet another measure announced by the RBI Governor in his monetary policy review on 5th June, complementing those announced by the Government with the common intent of bolstering the rupee. When Raghuram Rajan was heading RBI in September 2013, he faced a stiffer challenge in defending the domestic currency from the fallout of US tapering and introduced a similar swap facility with an implicit swap cost of 3.5% per annum for the commercial banks. Rajan’s swap window facilitated inflow exceeding USD 25 billion.

This measure has reopened an old but important debate in Indian monetary economics. When does a central bank’s liquidity-support operation become a structural subsidy to balance-sheet risk transformation? The mechanics of the facility raise a sharper analytical question. Are Indian banks genuinely constrained by the absence of foreign currency assets, or is the system already capable of managing those risks through market instruments like interest rate swaps, making the RBI window an efficiency-enhancing arbitrage?

At the heart of the matter lies a deceptively simple proposition: banks raising FCNR deposits can either (a) deploy them in foreign currency assets, or (b) convert them into rupee liabilities through swaps and lend domestically. The RBI window makes option (b) unusually attractive by removing currency risk at a pre-agreed exchange rate. But whether option (a) is structurally constrained in the Indian system is not obvious from headline balance sheet numbers.

What Bank Disclosures Actually Show

A useful starting point is the foreign currency composition of large Indian banks. In the case of ICICI Bank, disclosures in its international filings indicate that average foreign currency assets were around ₹1.59 trillion against foreign currency liabilities of roughly ₹1.25 trillion in FY2025 (Form 20F Disclosure). This implies a coverage ratio of about 127%, suggesting that the bank holds more foreign currency assets than liabilities. The standalone balance sheet of the Indian operations of the bank reveals the coverage ratio higher at 156% (Disclosure Schedule 6 Maturity Pattern).

However, aggregate sufficiency does not necessarily imply maturity alignment sufficiency. This distinction is critical.

The Real Constraint: Tenor Mismatch, Not Currency Mismatch

The FCNR deposit base tends to be long-dated, typically three to five years. On the asset side, however, foreign currency lending is heavily skewed toward short-tenor instruments like trade credit, working capital facilities, and short-term syndicated exposures. To insulate the balance sheet from this tenor mismatch risk, interest rate swaps (IRS) become relevant.

A bank can manage this mismatch by retaining foreign currency liabilities and using a Receive Fixed / Pay SOFR (Secured Overnight Financing Rate) interest rate swap. Such swaps convert fixed-rate FCNR liabilities into floating-rate ones, aligning funding costs with asset repricing cycles. This neutralises interest rate risk without requiring currency conversion.

What the RBI Swap Window Actually Changes

Under market conditions, if a bank converts FCNR inflows into rupees, it must enter into a currency exchange swap for similar tenor of the deposit in the market to hedge the currency risk. At current interest rate differential, the cost would range between 2 to 3% for the three to five years tenor. The RBI facility replaces this with a fixed exchange-rate commitment at maturity. Economically, this implies that the central bank is absorbing the forward curve differential risk that would otherwise sit in the private market. This is why the facility is more than a liquidity tool. It is a risk-transfer mechanism from banks to the sovereign balance sheet.

The Balance Sheet Implication for RBI

The interesting analytical issue is not the banking system, but the central bank’s future balance sheet dynamics. At maturity, the RBI faces exchange rate risk that is directionally uncertain. INR depreciation crystallises an actual loss, while appreciation represents a likely profit. This has implications for the Reserve Bank’s surplus transfer framework. In recent years, large transfers to the Government have been guided by the Jalan Committee framework, which recommended maintaining a contingency risk buffer. In simple terms, today’s liquidity stabilisation mechanism may translate into tomorrow’s earnings volatility for the central bank. However, if RBI chooses to retain the FCNR swap inflows as US Dollars itself in its Balance Sheet, this stated currency risk does not surface.

Liquidity Implication for the System

The banking industry estimates the flow from this scheme to be close to US Dollar 50 billion. Once the banks swap this with RBI, close to 4.75 trillion of rupee will flow into the system. RBI will have to perforce sterilise this surge in system liquidity through bond sales window (Open Market Operations) and Variable Rate Reverse Repo auctions of appropriate maturities. Else, economy will witness inflationary pressures. Similarly, when the swaps mature in 2029 to 2031 in bunches, similar liquidity withdrawal from the system will need to be countered by the central bank.

A Balanced Interpretation

It would be incorrect to argue that banks are fully self-sufficient in managing FCNR inflows without RBI support. Equally, it would be incomplete to argue that they are structurally unable to deploy foreign currency assets.

The evidence suggests a more subtle reality:

1. Large banks do possess foreign currency asset capacity (as seen in ICICI disclosures)
2. IRS markets already provide efficient tools to manage interest rate mismatches
3. The binding constraint is not aggregate FX asset availability, but tenor-quality-liquidity alignment
4. The RBI swap window resolves the final leg of risk transformation, currency conversion, without any implied cost

Conclusion

The FCNR(B) swap window should therefore be seen less as a remedy for an asset shortage and more as a policy-enabled optimisation layer over an already functional hedging architecture.

However, as these swaps mature over the coming years, the true fiscal-monetary interface will become more visible in the Reserve Bank’s income statement. The eventual crystallisation of currency risk, whether favourable or adverse, will determine whether this mechanism is remembered as a clever liquidity innovation or a quiet transfer of long-dated risk onto the sovereign balance sheet. Either way, it is a reminder that in modern monetary systems, no hedge is free. Risk is only relocated, not eliminated.

Will the Governor Sanjay Malhotra be remembered as the present day Joseph (who interpreted Pharaoh’s dream: Genesis 41: 1- 36) to have deciphered the Finance Minister’s dreams correctly? While it took seven years of famine to validate Joseph’s interpretation, today’s gamble will stand validated in three to five years from now.