The combined market valuation of eight of the top-10 most valued firms eroded Rs 1,65,784.9 crore last week, with Tata Consultancy Services (TCS) taking the biggest hit, in line with bearish trends in equities. Last week, the BSE benchmark declined 628.15 points, or 0.82 per cent, while the Nifty went lower 133.35 points, or 0.58 per cent.
