Benchmark indices ended on a mixed note in the highly volatile session on February 1.At Close, the Sensex was up 158.18 points or 0.27% at 59,708.08, and the Nifty was down 45.90 points or 0.26% at 17,616.30. The top gainers on the Sensex were Power Grid, ICICI Bank, State Bank of India, Kotak Bank, and HDFC while the top losers were ITC, Sun Pharma, Adani Enterprises, Adani Ports, and IndusInd Bank. About 1241 shares have advanced, 2193 shares declined, and 106 shares are unchanged. Among sectoral indices, the Nifty PSU bank index crashed 9 percent, while the Nifty Metal index tumbled 5.6 percent. The Nifty Bank, Auto, Financial Services, Private Bank, and Realty indices fell over 2 percent each. In the broader markets, the BSE MidCap and SmallCap indices cracked up to 1.5 percent.