The Reserve Bank of India (RBI) is prepared to sell a sixth of its foreign exchange reserves to defend the rupee against a rapid fall after it plumbed record lows in recent weeks, quoting a source privy to the development Reuters reported on Wednesday.


The Indian currency has lost over 7 per cent of its value in 2022 and weakened past the psychological level of 80 per US dollar on Tuesday.


However, according to the source, the fall would have been far bigger if the central bank had not stepped in to stem the decline.


According to the report, the RBI’s currency reserves have depleted by over $60 billion from its peak of $642.450 billion in early September, in part due to valuation changes, but mostly because of dollar selling intervention.


Despite the drawdown, the RBI’s reserves of $580 billion remain the fifth-largest in the world, giving the central bank confidence in its ability to prevent any sharp, jerky depreciation of the rupee.


“They have shown that they will use reserves at will to prevent volatility in the rupee. They have the wherewithal and have demonstrated the willingness to use it,” the source said, while adding, “The RBI can afford to spend even $100 billion more if required to defend the rupee.” the source added.


The central bank, as per its stated stance, does not try to protect the rupee or hold it at a certain level but will act to avoid any runaway depreciation in the currency, the source added.


The RBI, however, did not immediately respond to Reuter’s query seeking comment.


The fall in rupee is in line with what is happening globally, a broad and persistent US dollar rally driven by the US Federal Reserve's aggressive monetary tightening and the resultant scramble by investors to dump riskier assets in favour of dollars.


India's trade and current account deficits too are looking set to widen further as the Russia-Ukraine conflict has led to a spike in commodity prices, in particular oil that forms a large chunk of India's import bill.


"No doubt a lot of the rupee decline is related to the US dollar strength and higher oil prices, but the RBI has also been behind the curve despite inflation staying above the midpoint target for nearly three years now and growth momentum still strong," said Charu Chanana, a markets strategist at Saxo Capital Markets.


Foreign investors have sold nearly $30 billion worth of shares so far in 2022, while the monthly trade deficit has averaged $25 billion since January, suggesting a $100 billion intervention kitty to directly offset the dollar demand would barely last four months.


Most analysts and traders believe worst is yet to come for the rupee, despite the RBI's intent to defend the currency and India's sound macroeconomic fundamentals.