Tata Consultancy Services and ICICI Bank topped the gainers list as the combined market valuation of seven of the top 10 most valued companies hit Rs 65,302.5 crore last week . The BSE benchmark Sensex climbed 663.35 points or 0.90 per cent, and the Nifty jumped 165.7 points . Reliance Industries, Infosys and Life Insurance Corporation of India (LICI) faced erosion from their market capitalisation .