On October thirty-first, twenty twenty-five, Indian equity markets closed in red territory with the Sensex falling four hundred and sixty-six points to eighty-three thousand nine hundred and thirty-nine and the Nifty fifty declining one hundred and fifty-six points to twenty-five thousand seven hundred and twenty-two, marking the second consecutive day of losses amid profit-booking after October's robust five percent monthly rally. The day's standout movers included strong gainers like Bharat Electronics, which surged four percent on impressive Q2 results with twenty-six percent revenue growth, alongside PSU banks like Union Bank of India that rallied over four percent following SEBI's significant regulatory overhaul of Bank Nifty, which increased the index constituents from twelve to fourteen and capped the top stock's weight at twenty percent to reduce concentration risk. On the downside, Eternal plummeted three point four-five percent while NTPC and Cipla each declined over two point five percent despite posting earnings. The Bank Nifty closed at fifty-seven thousand seven hundred and seventy-six amid broader banking sector weakness, while the rupee held steady around eighty-eight point seven-two against the dollar. Commodity markets saw gold and silver prices weaken on the MCX as the stronger US dollar and higher bond yields pressured precious metals, while crude oil continued its third monthly decline at sixty-three point ninety-seven dollars for Brent crude. From a technical perspective, the Nifty found support around twenty-five thousand seven hundred but faces key resistance at twenty-five thousand nine hundred and seventy, with traders advised to watch for SEBI's weight rebalancing flows into PSU banks and monitor the twenty-six thousand level as a critical threshold for the week ahead.