The rupee has been under pressure for months. On 10 October 2026 the RBI reached for an old but powerful tool, and it quietly went live on 12 October. Here is what it does, in plain language.
What happened
On 10 October 2026 the Reserve Bank of India announced a special dollar window for the three big state-run oil marketing companies: Indian Oil (IOC), Hindustan Petroleum (HPCL) and Bharat Petroleum (BPCL). It came into effect on 12 October and stays open until further notice.
Under this window, the RBI supplies US dollars to these companies directly, through designated banks, to cover their daily import needs. The key word is directly. Until now, these companies bought their dollars from the open currency market. Now a large part of that demand is met by the RBI itself.
First, why oil companies need so many dollars
India imports most of its crude oil, and oil is priced and paid for in US dollars. IOC, HPCL and BPCL are among the single largest buyers of dollars in the country, every single day, because every shipment of crude has to be paid for in dollars.
That demand is huge, and it is lumpy. When these companies step into the market together to buy dollars, they push the price of the dollar up against the rupee. In plain terms, their own buying can weaken the rupee.
What changes, before and after
Before: oil companies bought dollars in the open market. Their large daily demand added steady upward pressure on the dollar and made the rupee more volatile.
After: the RBI gives them the dollars directly, through banks. That demand no longer hits the open market in the same way.
Notice what does not change. India still imports the same oil, and those dollars still leave the country to pay for it. The total outflow is the same. What changes is where the demand is met. By taking the biggest and most predictable chunk of dollar demand off the open market, the RBI removes a major source of day-to-day pressure on the rupee.
Why this helps the rupee
Think of the currency market like any other market. If the single biggest buyer stops bidding in public and is served quietly from the back, prices in the open market calm down.
That is the whole idea. The rupee does not automatically get stronger, but it stops getting pushed around through the day by one very large, very regular buyer. The result is lower volatility and a steadier rupee, without the RBI having to raise interest rates or announce anything dramatic.
Why now
The rupee has been trading near record lows, around 96 to 97 per dollar, and is down roughly 7 percent this year. Two forces have been weighing on it. Oil has been expensive for much of the year, which means a bigger dollar bill for India. And on the geopolitical side, US tariff threats on buyers of Russian energy have added uncertainty around India's trade and flows.
At the same time, the RBI is in a strong position to act. India's foreign exchange reserves are near record highs, in the region of 730 billion dollars. A big reason is a special deposit scheme earlier this year that pulled in a large amount of money from non-resident Indians.
The FCNR piece, explained simply
Earlier in 2026 the RBI ran a special FCNR(B) swap window. In simple terms, it encouraged banks to raise foreign-currency deposits from non-resident Indians by offering attractive rates, and then let banks swap those dollars with the RBI. This brought tens of billions of dollars into the system and padded the reserves.
It is worth being precise here, because two things are easy to mix up. The FCNR drive is what gave the RBI a bigger war chest. The oil-company window is a separate action that spends from that war chest. One built the reserves, the other draws on them.
This has happened before
This is not a new invention. The RBI used a very similar oil dollar window back in 2013, during the taper-tantrum crisis when the rupee was falling fast. It helped calm the currency then, and the RBI wound it down gradually once things stabilised. The 2026 version is the same idea, reached for in a similar moment of stress.
The honest caveats
This is a smart, low-noise way to support the rupee, but it is not a magic fix, and it is fair to say so.
First, it treats the symptom, not the cause. The pressure on the rupee comes from the oil bill and from capital flows. This window reduces neither. It only changes where the dollar demand is met.
Second, it draws on reserves. Every dollar handed to the oil companies is a dollar that leaves the RBI's holdings. The strong reserve position makes this comfortable for now, but it is not free.
Third, the fine print is still thin. The RBI's public wording talks about selling dollars through designated banks. The exact mechanics, such as whether it is a straight sale or a swap, and precisely how much comes from reserves, are not fully spelled out yet.
What to watch
- Whether USDINR volatility actually cools over the coming weeks, which is the real test.
- How long the window stays open, and whether the RBI tapers it as it did in 2013.
- The level of forex reserves in the RBI's weekly data, to see how much this is costing.
- The 18 October US tariff deadline on Russian-energy buyers, which is the bigger overhang for the rupee.
Bottom line
The RBI has taken the biggest and most predictable source of daily dollar demand, the oil importers, and moved it off the open market. It does not change how much oil India buys or how many dollars leave the country. What it changes is the pressure on the rupee from one very large buyer, and that should mean a calmer, steadier currency. It is a quiet, targeted move, backed by a record pile of reserves, rather than a loud one.
Educational purposes only, not investment advice.
Sources: RBI announcement dated 10 October 2026 on the special dollar facility for IOC, HPCL and BPCL, effective 12 October 2026; reporting on India's foreign exchange reserves near record levels around 730 billion dollars; reporting on the 2026 FCNR(B) swap window and the resulting deposit inflows; and the 2013 RBI oil swap window as precedent.