The combined market valuation of four of the top-10 most valued firms eroded by Rs 87,960.29 crore last week, with Bharti Airtel taking the biggest hit, in-tandem with a bearish trend in equities.
Last week, the BSE benchmark Sensex declined 468.42 points, or 0.60 per cent, and the NSE Nifty dipped 114 points, or 0.46 per cent.