Equity benchmark Sensex rallied over 500 points in early trade on Tuesday tracking heightened buying sentiment across the board amid strong cues from global markets as hopes of a Covid-19 vaccine boosted investor confidence. After hitting a high of 37,923.38, the 30-share BSE Sensex was trading 462.77 points, or 1.24 percent, higher at 37,881.76. Similarly, the NSE Nifty rose 136.35 points, or 1.24 per cent, to 11,158.55. ICICI Bank was ...