The Reserve Bank of India's special swap windows have collectively mobilised a cumulative $136.3 billion through end-August, surpassing market expectations by a wide margin and likely pushing India's foreign exchange reserves beyond $750 billion, according to a report released on Thursday, 3 September. The surge gives the central bank substantial firepower to defend the Indian rupee against external pressures.

Scale of the Inflows

Of the total inflows, nearly 92 per cent — or approximately $126 billion — arrived through FCNR(B) deposits, with the remaining portion channelled via offshore borrowing facilities. The scale of mobilisation has exceeded what most market participants had pencilled in, underscoring the effectiveness of the RBI's swap architecture in attracting foreign currency into the domestic system.

Impact on the Rupee and Intervention Bias

The surge has already altered the RBI's intervention posture. The USD/INR pair corrected sharply, testing below the 95 handle and trading into the mid-94 range, driven by strong dollar sales by the central bank alongside broader dollar weakness. Traders are now eyeing an immediate band of ₹94.10–₹95.50, with a decisive break below ₹94.10 potentially opening the path toward ₹93.50.

Liquidity Implications

Radhika Rao, Senior Economist and Executive Director at DBS Bank, noted that the swap-linked inflows will add to an already abundant rupee liquidity backdrop. 'Given the swap arrangement, these inflows will add to an already abundant INR liquidity backdrop, which was at a four-year high this month, depressing overnight rates,' she said. Organic counter-balancing factors — including tax-related outflows, seasonal currency leakage, a current account deficit of around 1.1 per cent of GDP, portfolio outflows, and maturity of forward books — are expected to partially offset the liquidity surge, though the DBS report cautioned that concerted steps remain necessary to drain excess liquidity.

Managing Bunched Deposit Maturities

The DBS report flagged the risk posed by bunched-up deposit maturities in the three- and five-year tenor buckets. It suggested that a portion of the existing reserve stock could be earmarked against these liabilities to prevent a sharp spike in dollar demand when deposits mature. 'A portion of the existing reserve stock could be earmarked against these liabilities, helping to mitigate concerns that deposit maturities or debt repayments could trigger a sharp increase in dollar demand and exert pressure on the FX market down the line,' the report stated.

Broader Market Context

Market participants expect the RBI to continue rebuilding reserves and curtailing rupee depreciation. The rupee is additionally supported by broader Asian currency strength and a retreat in the dollar index, partly led by a rally in the Japanese yen. This confluence of domestic policy action and external tailwinds has positioned the rupee more defensively than at any point in recent months. How long the external tailwinds persist will be a key variable for the RBI's reserve-management strategy going forward.