The Sensex surged by 1,300 points, driven by strong performances across all sectors, particularly in Nifty Bank, Energy, Infrastructure, and Realty, which gained up to 3%. Key factors included the positive outcome of the Maharashtra elections, encouraging signals from Asian and US markets, and a dip in foreign outflows, leading to a significant increase in investor wealth by Rs 8.5 lakh crore in a single day. Additionally, short covering in large-cap stocks and a rally in PSU shares contributed to the market's resilience.