Compare RBI's 2026 FCNR(B) swap scheme with the 2013 taper-tantrum-era swap window. What lessons has RBI institutionalised?

A forex swap window lets RBI take over the exchange-rate risk on banks' foreign currency deposits at a pre-fixed cost, converting volatile portfolio dependence into stable long-tenor inflows. Both 2013 and 2026 deployed this device against capital-flow stress, but 2026 is a scaled-up, pre-emptive refinement of the 2013 template.

Design continuity

• Core architecture retained: fresh FCNR(B) deposits of minimum three-year tenor with a one-year lock-in, swapped with RBI on the principal amount alone [1][2].
• Both windows bundle deposits with banks' overseas borrowings, targeting long-maturity money rather than hot portfolio flows [1][2].

Points of divergence

• Trigger: 2013 answered the US Fed's taper tantrum and a collapsing rupee; 2026 responds to high crude import bills plus FPI equity outflows [3][4].
• Scale and speed: 2013 mobilised roughly $26 billion over about three months; 2026 drew $73 billion in eleven weeks and over $136 billion in all — India's largest and fastest foreign-currency mobilisation [3][4].
• Cost: 2013 inflows were purchased with a deep 3.5% concessional swap rate against far higher market rates [2].
• Scope: 2026 formally covers FCNR(B) deposits, OFCBs and ECBs with staggered validity windows, a wider menu than 2013's deposit-centric design [1].
• Exit: the FCNR(B) window was closed early, on August 31, 2026, once the objective was met [3] — a calibrated exit absent earlier.

Lessons institutionalised

• Pre-emption: operationalised within days of announcement (June 8, 2026), before reserves were seriously drawn down [1].
• Diversification and mid-course recalibration of instrument mix and closure dates, guided by realised inflow data [1][3].
• Sterilisation discipline: RBI is simultaneously absorbing rupee liquidity so call rates stay anchored to the policy repo rate [4].
• Balance-sheet repair: proceeds can retire RBI's roughly $137 billion short forward dollar position, cutting rollover risk [4].

The 2026 window therefore marks a crisis improvisation maturing into a standing, rule-based instrument of external-sector management. Sustained benefit will depend on planning for the repayment bunching when these three-year liabilities mature, and pairing such windows with durable current-account correction. Used this way, the swap facility strengthens the macroeconomic stability that underpins India's growth objectives.