The Reserve Bank of India's surprise clampdown on bearish rupee positions has triggered a frantic $30 billion unwind of arbitrage trades, deepening chaos in the currency market. Banks scrambled Monday to reduce positions after the central bank ordered a halt to offshore dollar purchases, sparking panic and thin liquidity. One dealer likened the pressure to an intern performing open-heart surgery, highlighting the extreme difficulty of executing trades under the new restrictions. While exact figures are elusive, estimates suggest banks closed $4-$10 billion of positions Monday, leaving at least $20 billion still to unwind before the April 10 deadline unless the RBI reverses course. This forced unwind has widened the onshore-offshore forward spread to its highest since 2020, signaling heightened volatility ahead.

The RBI's boldest move in over a decade targets onshore rupee weakness, forcing banks to unwind positions where they bought dollars locally and sold them offshore. This specific crackdown contrasts with past measures that allowed netting across onshore-offshore markets. The directive reflects deeper pressures: India's elevated oil prices and persistent capital outflows have pushed the rupee to a fresh low near 94.80, with Monday's intraday range the widest since 2013. Traders warn the rupee could weaken further to a record 100 per dollar if the Iran war persists and inflation remains elevated, despite the central bank's intervention.

Banks largely held off on taking losses on Monday to avoid marking down books during the last trading day of the financial year, but the RBI's surprise move has left the market bracing for sharper moves. Requests for deadline flexibility are still being made, though the RBI has offered no indication of backing down. With only Thursday's session remaining this week, volumes are expected to stay subdued, though implied volatility has surged to November 2020 highs, signaling traders anticipate exaggerated price swings. The market's reaction underscores the limits of the RBI's measures in the face of structural pressures.