Indian equities took their worst single-session hit in weeks on Monday, with the BSE Sensex falling more than 1,000 points and the Nifty50 slipping below 22,850. All 30 Sensex stocks traded lower at one point in the morning, an unusually broad selloff that wiped out roughly Rs 6 lakh crore in market value from BSE-listed companies.
By 10:40 am the Nifty50 stood at 22,835.15, down 305 points or 1.32%. The Sensex was at 72,909.34, lower by 986 points or 1.33%. Bajaj Finance, Kotak Mahindra Bank and HDFC Bank were among the biggest decliners. The selling spread past the large caps, with both the mid-cap and small-cap Nifty indices down more than 1%.
Oil is the trigger again
The proximate cause sat 2,000 kilometers away. Over the weekend President Trump rejected Iran’s proposal to reopen the Strait of Hormuz, saying the deal was one Washington might have accepted a year ago but not now. Brent crude climbed about 2% to near $107 a barrel, and markets started pricing in the possibility of further disruption to tanker traffic through the strait.
“I reject this agreement. They want an agreement to be made under which the Strait of Hormuz is immediately opened, because they are severely failing,” Trump said over the weekend.
India imports around 85% of its crude, which makes it one of the most oil-sensitive large economies in the world. Every $10 move in Brent translates directly into import costs, currency pressure and inflation expectations, so the Hormuz headlines hit Mumbai harder than most markets.
The proposal Tehran put on the table was expensive for Washington to accept. It conditioned reopening the strait on the US lifting its naval blockade, waiving sanctions on Iranian oil, releasing $12 billion in frozen assets and observing a ceasefire that included Lebanon. Trump’s answer was blunt, and Iranian officials spent the weekend signaling they would not soften the terms. Iran’s army said its forces were prepared for renewed US attacks, and a senior official told Reuters Tehran would show no flexibility on its nuclear program even if the strait deal went through.
Yields and the rupee compound the pressure
The second pressure came from US bonds. The 10-year Treasury yield moved above 5.2% after a poorly received auction and hot PMI data, its highest level since the financial crisis, and the 30-year crossed 5.5%. Higher US yields pull foreign capital out of emerging markets, and India is one of the largest destinations for that money.
The rupee weakened 14 paise to 95.89 against the dollar in early trade, and traders were watching the 96 level as crude prices and elevated yields kept up the pressure. Foreign investors offloaded shares worth Rs 3,694 crore on Friday, taking total equity outflows through exchanges to Rs 25,682 crore for September.
JPMorgan said it could not clearly assess the direction of oil prices from here, a comment that captures the wider problem for risk desks: the Hormuz standoff has no obvious resolution timeline, and every session that passes without one adds a risk premium to everything from crude to freight insurance.
A global risk-off day
India was not alone. Bitcoin slipped under $83,000 with about $309 million in crypto long positions liquidated over 24 hours. US index futures pointed lower, and Asian peers traded mixed as the same two forces, oil above $100 and yields at multi-year highs, worked through every market in the region.
The difference is that India faces both pressures at once and has the least room to absorb them. The Reserve Bank has defended the rupee around the 96 level before, and sustained intervention drains reserves just as higher oil widens the current account deficit. That combination is what turned a global risk-off day into a 1,000-point move in Mumbai.
Domestic politics adds a wrinkle. A 22% digital asset tax fight is running in parallel in Delhi, and opposition lawmakers have pushed to kill the levy before it takes effect in 2027, but that debate is a sideshow next to the macro numbers. Foreign desks are not selling Indian equities over crypto tax policy.
What to watch next
Two things decide whether Monday was a flush or the start of something worse. The first is Hormuz: any signal that Washington and Tehran will actually talk, rather than trade proposals and rejections, would pull the risk premium back out of crude quickly. Trump told Axios he expects US negotiators to engage in more talks with Iran this week, though on a different deal than the one he rejected. Iran’s foreign minister, Abbas Araghchi, said Tehran was still awaiting an official US response and called the president’s comments a first reaction.
The second is the US data calendar later this week. With the 10-year above 5.2%, bond markets are doing the Fed’s work for it, and any upside surprise on inflation or payrolls would push yields higher and emerging market outflows deeper. The Fed already raised its target range by a quarter point to 3.75% to 4% on September 16, and most officials penciled in one more increase before year-end.
Indian traders will watch both the rupee’s 96 line and the daily FPI flow numbers before deciding whether to buy the dip. The last comparable selloff, in early 2025, reversed within three sessions once crude settled, but that episode did not involve an active naval standoff in the strait.
The OECD raised its global growth forecast to 2.9% for 2026 on Monday, crediting AI investment, but warned a prolonged conflict could cut 2027 growth to 2.3%. That gap between the baseline and the war scenario is now the whole trade.