RBI's FCNR(B) and ECB swap window: what it changes for banks

The central bank gets something in return. When banks swap dollars for rupees, the RBI's forward dollar book grows. That forward position acts as a buffer against spot-market pressure. If the rupee weakens sharply, the RBI can let those forward contracts mature and deliver dollars into the market, smoothing the move without selling from its spot reserves. The window also drains rupee liquidity temporarily, since banks pay rupees to the RBI for the swap, which helps the central bank manage excess cash in the banking system.

The timing matters. India's foreign exchange reserves have fallen about $40 billion from their September peak, partly from intervention to defend the rupee. The swap window gives the RBI a way to rebuild its forward cover without depleting spot reserves further. For banks, the window opens a cheaper funding channel at a time when credit growth is running at 14% and deposit growth has lagged at 11%, squeezing margins.

Not every bank will use the window equally. Lenders with large overseas branch networks or existing FCNR(B) deposit franchises can tap it most easily. Banks that rely on wholesale domestic deposits face a steeper cost comparison. The window's three-year tenor also locks in the hedge for the full term, which works for banks that want matched-maturity funding but limits flexibility if rates move sharply lower.

The RBI has used similar windows before. A 2013 swap program for FCNR(B) deposits brought in about $34 billion and helped stabilize the rupee during the taper tantrum. The current window is smaller in ambition – no target has been announced – but the structure is the same: offer banks a below-market hedge, let them bring dollars onshore, and use the forward book to manage future pressure.

The window closes June 30, 2026. Banks that want the cheap hedge need to raise the deposits and execute the swap before that date. The three-year tenor means the last swaps will mature in mid-2029, giving the RBI a forward book that extends well past the current intervention cycle.