Bajaj Finance's valuation eroded by ₹34,180.51 crore to ₹5,77,146.21 crore The combined market valuation of eight of the top 10 most valuable firms fell by ₹1.55 trillion last week, with HDFC Bank and Bajaj Finance accounting for most of the losses. In a holiday-truncated week, the 30-share BSE Sensex tumbled 1,605.44 points, or 2.15 per cent, while the 50-share NSE Nifty slumped 546.15 points, or 2.36 per cent.