Eight of the top-10 most valued firms together added Rs 1,83,290.36 crore in market valuation last week, with IT majors Tata Consultancy Services (TCS) and Infosys emerging as the biggest gainers, in line with a rally in equities. Last week, the BSE benchmark jumped 963.87 points, or 1.21 per cent. The market valuation of TCS jumped Rs 38,894.44 crore to Rs 14,51,739.53 crore, becoming the biggest gainer among the top-10 firms. Infosys added Rs 33,320.03 crore taking its valuation to Rs 6,83,922.13 crore. The valuation of Reliance Industries climbed Rs 32,611.36 crore to Rs 21,51,562.56 crore and that of ICICI Bank zoomed Rs 23,676.78 crore...