<h1>Sensex and Nifty Plunge 1.6% Amid Earnings Worries, Foreign Outflows, and HMP Virus Concerns.</h1> Benchmark indices Sensex and Nifty fell by 1.6% due to widespread selloffs driven by concerns over third-quarter earnings and foreign capital outflows. Additional factors such as the new HMP virus scare, a depreciating rupee, and weak Asian market trends contributed to the negative sentiment. The Sensex dropped 1,258.12 points to close at 77,964.99, while the Nifty decreased by 388.70 points to 23,616.05. Major laggards included Tata Steel, NTPC, and Reliance Industries, with Titan and Sun Pharma being the only gainers. Foreign Institutional Investors sold equities worth Rs 4,227.25 crore, impacting market performance.