The day saw heavy losses as the BSE Sensex plunged 733 points, or 0.9%, to close at 80,426.5. The index hit an intraday low of 80,332. Similarly, the Nifty50 index fell 236 points, or 0.95%, to settle at 24,655, dipping as low as 24,629 during the day. With these declines, the benchmark indices marked their worst weekly performance in seven weeks.
In the broader markets, the Nifty MidCap index fell by 2.05%, and the Nifty SmallCap index decreased by 2.2%, reflecting the widespread weakness across the market.
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Impact on the stock market
Sector-wise performance
The day’s market declines were widespread, with the Nifty IT index falling by 2.3%, the Nifty Pharma index losing 2.2%, and the Nifty Bank index down by 1%. These sharp declines in key sectors further amplified the selling pressure.
Other sectors were similarly impacted, with only a few gaining. The Nifty Metal index was the only sector to show some resilience, though it still saw a minor dip of 0.35%.
| Sector/Index | Performance |
| IT & BPM sector | -2.45% |
| Healthcare sector | -2.06% |
| Oil & Gas sector | -0.72% |
| Real estate sector | -1.78% |
| PSU Bank in India | -1.78% |
Top gainers today
| Company | Share Price (in ₹) | Change % |
| Larsen | 3,729.50 | 2.34 |
| Tata Motors | 672.90 | 1.29 |
| ITCÂ | 404.95 | 1.21 |
| Reliance | 1,377.60 | 0.38 |
| Eicher Motors | 7,012.00 | 0.37 |
Top losers today
| Company | Share Price (in ₹) | Change % |
| IndusInd Bank | 712.80 | -3.77 |
| M&MÂ | 3,399.70 | -3.69 |
| Eternal | 321.75 | -3.16 |
| Sun Pharma | 1,576.90 | -3.10 |
| Tata Steel | 167.40 | -2.89 |
Market aftermath: Impact on stocks
Carysil Shares Plunge Due to Trump’s Tariff Announcement
Carysil, a company known for manufacturing quartz kitchen sinks, saw its stock price drop by as much as 10% after US President Donald Trump imposed a 50% tariff on imported kitchen cabinets. Carysil’s shares, which depend on US exports for around 21.5% of their revenue, were hit hard by the news. However, the stock recovered slightly after Carysil clarified that the tariffs did not apply to its kitchen sinks, which led to some investor reassurance. Despite this, the stock remained down by 5% at Rs 806.40.
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Tata Motors Shares Rise After Cyber Attack Recovery
Tata Motors experienced a 2% uptick in its shares after Jaguar Land Rover (JLR) announced a phased recovery of its digital systems that had been disrupted by a cyberattack. JLR’s recovery process was seen as a positive signal, helping restore some investor confidence. JLR accounted for 72% of Tata Motors’ total revenue in FY25, and its strong performance in North America helped boost the parent company’s prospects. Tata Motors’ share price rose by 2.13%, closing at Rs 678.45.
Also read: Tata Motors share analysis
Vodafone Idea Shares Drop After AGR Hearing Delay
Shares of Vodafone Idea fell by 6% after the Supreme Court deferred the hearing on its AGR (Adjusted Gross Revenue) plea to October 6. Vodafone Idea had sought to quash additional AGR demands from the Department of Telecommunications (DoT) for the period until FY17. The delay in hearing, coupled with ongoing concerns regarding the telecom sector’s financial health, led to the drop in its stock price. Vodafone Idea continues to face significant liabilities, with AGR dues of around Rs 83,400 crore and potential penalties.
Crude oil prices rise amid Russia’s export ban
In global commodity news, crude oil futures experienced a slight increase on 26th September following Russia’s decision to impose a ban on diesel exports for the remainder of the year. This announcement contributed to a rise in oil prices, with Brent crude trading at $69.56, up by 0.20%, and WTI crude at $65.23, up by 0.38%. The move comes amid a decline in Russia’s refining capacity, which has been affected by recent drone attacks on energy infrastructure.
In India, crude oil futures on the Multi Commodity Exchange (MCX) also saw an uptick, with October crude oil futures trading at ₹5,798, up by 0.43%. This price increase could impact sectors reliant on oil and gas, further adding to inflationary pressures.
Conclusion
The Indian stock market faced a rough session on 26th September 2025, driven by heightened geopolitical tensions, a fresh round of tariffs from the US, and continued offloading by foreign investors. The Sensex and Nifty50 indices posted significant losses, marking their worst weekly decline in seven weeks. Sectoral weakness, particularly in IT, Pharma, and Banking, contributed to the market’s struggles.
Despite some recovery in select stocks like Tata Motors, the overall sentiment remains cautious. Geopolitical developments, including Russia’s decision to ban diesel exports and the ongoing issues around Vodafone Idea’s AGR dues, continue to weigh on investor confidence. As we move into the final quarter of 2025, market participants must brace for volatility and look for opportunities amidst the uncertainty.
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