Eight of the top-10 most valued firms added Rs 1,47,935.19 crore in market valuation last week, with Life Insurance Corporation of India (LIC) and Reliance Industries emerging as the biggest gainers. Last week, the BSE benchmark climbed 1,341.47 points or 1.84 per cent. The National Stock Exchange (NSE) and BSE conducted a special trading session in the equity and equity derivative segments on May 18 to check their preparedness for handling major disruptions or failures at the primary site. The valuation of LIC zoomed Rs 40,163.73 crore to Rs 6,16,212.90 crore. Reliance Industries added Rs 36,467.26 crore, taking its market valuation to Rs 19,41,110.70 crore. The valuation of Bharti Airtel climbed Rs 26,492.61 crore to Rs 7,64,917.29 crore, and that of HDFC Bank rallied by Rs 21,136.71 crore to Rs 11,14,163.29 crore. The market capitalisation (mcap) of ICICI Bank soared Rs 9,570.68 crore to Rs 7,94,404.51 crore, and that of Infosys went up by Rs 7,815.51 crore to Rs 5,99,376.39 .