The combined market valuation of eight of the top-10 most valued firms declined by Rs 2,08,207.93 crore last week, with bellwether Reliance Industries, TCS and Infosys taking the biggest hit. While these three firms along with ITC, Life Insurance Corporation (LIC), Hindustan Unilever Ltd, Bharti Airtel and ICICI Bank were the laggards, HDFC Bank and State Bank of India (SBI) emerged as gainers. Last week, the 30-share BSE Sensex tanked 1,449 points or 1.92 per cent. It rose by 75.71 points or 0.10 per cent to settle at 73,961.31 on Friday, snapping a five-day losing streak. The market capitalisation (mcap) of index heavyweight Reliance Industries plunged by Rs 67,792.23 crore to Rs 19,34,717.12 crore, while TCS mcap declined by Rs 65,577.84 crore to Rs 13,27,657.21 crore. The valuation of Infosys slumped by Rs 24,338.1 crore to Rs 5,83,860.28 crore, and that of ITC went lower by Rs 12,422.29 crore to Rs 5,32,036.41 crore. Mcap of LIC dropped by Rs 10,815.74 crore to Rs 6,40,532.52