The RBI’s dollar window should be judged by how well the rupee market works

On 12 October, the Reserve Bank of India opened a window to supply the daily dollar requirements of Indian Oil, Hindustan Petroleum and Bharat Petroleum through designated banks. For three large buyers, it changed the source of the dollars used to settle import payments. The RBI said the arrangement would operate until further notice. Its announcement gave no daily transaction volume or pricing terms. These omissions matter for assessing the scale of the intervention and who ultimately bears its cost. RBI, 10 October special dollar window announcement

The economic case is strongest if the RBI is addressing a shortage of liquidity at particular times of day. Moving concentrated oil-company orders away from ordinary market dealing can help banks quote prices and absorb other customer orders. That is a reason to use the window during a disruption. The facility has a weaker case as a standing response to an expensive oil import bill or a persistent shortage of foreign financing. Success should be measured by spreads, depth and the ability to withdraw the facility, alongside the rupee’s exchange rate.

The policy moves order flow to the central bank

An oil company that needs dollars can approach a commercial bank. The bank can match the order against a customer selling dollars, draw on its own dollar inventory, or buy the difference in the interbank market. If several large orders arrive when dealers have limited capacity to take the other side, the cost of executing them rises. An order can move the exchange rate by more than the same order would move it in a deeper market. Other importers then face the prices and spreads left behind by that sequence.

The new window gives the designated banks a route to obtain the dollars from the RBI for the three companies. That can reduce the imbalance dealers have to absorb in ordinary trading. Its immediate benefit depends on when those orders would otherwise have reached the market, whether dealers had capacity to match them, and how much of the demand was already hedged. The public announcement identifies the eligible firms and the channel. It leaves open how much dollar demand the facility actually displaced on a given day. RBI, 10 October special dollar window announcement

There is a precedent, with an important contractual difference. In August 2013 the RBI used a facility for the same three companies that it described as fixed-tenor sell/buy dollar–rupee swaps. A swap has a reverse leg that determines when the currency is exchanged back. The October 2026 announcement describes sales of dollars through designated banks. It gives no basis for assuming the current facility has the same reverse leg, maturity or pricing as the 2013 one. RBI, 10 October special dollar window announcement · RBI, account of the August 2013 oil-company FX swap window

The arithmetic of the import bill

Consider an illustrative cargo of one million barrels. At $100 a barrel and ₹95 per dollar, its commodity value is ₹950 crore. If crude rises to $125 while the exchange rate stays at ₹95, the cost rises to ₹1,187.5 crore. If the rupee also weakens to ₹96 per dollar, the total rises to ₹1,200 crore. In this example the oil price accounts for ₹237.5 crore of the increase at the original exchange rate, and the additional currency move adds ₹12.5 crore at the new oil price. This is a hypothetical unhedged cargo, before freight, insurance and other costs.

A window that allows the company to secure dollars at ₹95 rather than ₹96 in that scenario can save the ₹12.5 crore attributable to the exchange-rate change. The bill still reflects $125 crude. Actual savings depend on the rates available in the market and at the facility, the timing of the order and the company’s prior hedges. A facility charging a market-linked rate can be valuable because it makes a large order easier to execute. A materially favourable rate would also raise a question about who pays for the concession. The public announcement does not establish that such a concession exists. RBI, 10 October special dollar window announcement

Why reserve changes need careful interpretation

Direct dollar sales can draw on the RBI’s foreign assets. If the sale is settled in rupees through a bank, it can also absorb rupee liquidity unless the RBI supplies liquidity elsewhere. The ultimate effect on domestic money-market conditions depends on its broader operations. This is one reason to assess the window alongside, but separately from, the MPC’s decision on 7 October to raise the repo rate by 25 basis points to 5.50%. A policy rate decision and the allocation of dollar liquidity address different margins. RBI, 10 October special dollar window announcement · RBI, October 2026 monetary policy resolution · RBI, half-yearly report on management of foreign-exchange reserves

A headline fall in reserves cannot establish the amount sold to oil companies. The RBI’s April–June accounting gives a useful example. Reported reserves fell by $22.5 billion. The RBI attributed $14.4 billion of that change to valuation effects, leaving an $8.1 billion decline on a balance-of-payments basis. Even that remaining figure describes a reserve change across the period and does not isolate transactions for a particular facility. Valuation, other FX operations, and transaction timing have to be separated before interpreting a change in the reserve stock. RBI, sources of reserve variation in April–June 2026 · RBI, April–June 2026 balance of payments

The external accounts provide a separate reason to avoid reading too much into spot trading. The RBI recorded a $4.2 billion current-account deficit for April–June and net portfolio outflows of $9.6 billion. Those were earlier quarterly figures. They show why both trade payments and investor behaviour belong in an assessment of external pressure. A facility for three oil companies can change the handling of their orders while India’s need to finance goods imports and other cross-border payments continues to depend on receipts, financing and the price of imports. RBI, April–June 2026 balance of payments

Coverage is itself a policy choice. The public announcement names three state-owned firms. Other importers still need to find dollars through their normal dealers. They may benefit if moving a few very large orders out of the market improves quotes for everyone else. They may be worse off if less trading makes prices harder to observe, or if banks widen forward spreads while keeping spot quotes tight. That is an argument for comparing execution costs for eligible and ineligible firms, alongside the headline exchange rate. It would also help distinguish a market-wide liquidity benefit from a convenience concentrated among the named firms. RBI, 10 October special dollar window announcement

What would show that the window worked?

Begin with the bid–ask spread, the size dealers are willing to quote and the price impact of a large order. Compare those measures before and after the window opened, especially at times when oil-company orders normally reached the market. Examine spot and forward pricing together. If spot spreads narrow but the cost of hedging rises sharply, part of the pressure may have shifted across markets. Aggregate take-up and changes in trading volume would also help distinguish a more liquid market from an apparent improvement caused by moving transactions outside the observed venue.

There are two problems with drawing a causal conclusion from the rupee’s first week. Oil and global yields can change at the same time, affecting the currency even in the absence of domestic action. The RBI also announced changes affecting foreign-exchange derivatives around the same date, so a break in forward pricing could reflect a package of measures. A stronger study would compare intraday changes around settlement times with similar hours before the decision, account for moves in Brent and a basket of Asian currencies, and check whether the result is still visible when the initial announcement days are excluded. Facility-level transaction data would make that test substantially more informative. RBI, 10 October Foreign Exchange Risk Reserve directions · Reuters, 10 October reporting on the policy package

A facility should have a way out

The strongest argument for intervention is that, in a temporarily shallow market, one large flow can amplify a shock and raise funding and hedging costs for companies beyond the oil sector. IMF research applying its Integrated Policy Framework to India finds scope for intervention in severe episodes when market depth falls, with more limited benefits when trading is liquid. The argument for restraint is that repeated intervention can consume reserves, weaken price discovery and give eligible buyers less reason to manage their exposure through the market. IMF working paper, foreign-exchange intervention in India

The window is defensible as a temporary liquidity measure. The RBI should assess its use against evidence on trading spreads, the market’s ability to absorb orders and the cost of hedging. It could publish aggregate take-up with a lag that protects commercially sensitive dealing. If private liquidity recovers and oil-company orders can again be absorbed without unusually large price moves, the case for continuing the window weakens. A smooth return to ordinary trading would be a stronger sign of success than any particular level of USD/INR.