The combined market valuation of eight of India's top 10 most valued firms surged by ₹4,13,003.23 crore last week, with HDFC Bank and ICICI Bank emerging as the biggest gainers. Last week, the Sensex jumped 4,230.7 points or 5.77%, and the NSE Nifty surged 1,337.5 points or 5.88%. HDFC Bank and ICICI Bank added ₹91,282.67 crore and ₹76,036.36 crore, respectively.