Eight of the top 10 most valued firms faced a combined erosion of Rs 1,06,991.42 crore in market valuation last week, with IT majors Infosys and Tata Consultancy Services along with HDFC Bank taking the biggest hit. Last week, the Sensex declined 940.37 points or 1.55 per cent. The market valuation of Infosys tumbled Rs […]