Benchmark index Sensex dipped over 1,000 points to close at 82,626.76 on Friday, while Nifty fell more than 1% to end at 25,471.10. The slump was driven by volatility in global markets and a sharp sell-off in IT stocks amid concerns over AI-led disruption. Bajaj Finance and State Bank of India emerged as the only gainers on the Sensex.