India's foreign exchange buffer may face a higher threshold, with former Reserve Bank of India Deputy Governor Michael Patra indicating that reserves may need to reach at least $1 trillion to maintain credible intervention capacity. Writing for BasisPoint Insight, Patra framed this figure as both a financial safeguard and a deterrent against speculative pressures, noting that such a level could make it more difficult for speculative market positions to challenge the central bank. He broke down the estimate into approximately $350 billion to cover one-year external debt and around $650 billion as a buffer against potential outflows of foreign portfolio capital. By comparison, India’s foreign reserves hit a record $728.5 billion in February.

Patra’s views come amid shifting macroeconomic conditions. Before leaving the RBI in early 2025, he oversaw and experienced a period of strong reserve accumulation, during which the central bank absorbed global capital inflows and later deployed these reserves to smooth currency volatility, helping make the rupee one of the least volatile currencies. Recently, however, the RBI has intensified its interventions after the rupee depreciated to a record low, while rising crude oil prices linked to the Iran conflict pose risks to India’s oil-import-dependent economy.

Despite these pressures, Patra suggested the RBI’s approach is likely to remain oriented toward gradual adjustment rather than aggressively defending a particular exchange rate level. He noted that an annual depreciation of around 4% to 5% in the rupee may be broadly consistent with India’s underlying investment-savings dynamics, adding that the central bank has historically sought a more controlled depreciation path rather than abrupt moves. For investors, the implication may be that while reserve accumulation remains a strategic priority, policy implementation is likely to favor stability through managed exchange rate movements rather than aggressive intervention.