Equity benchmark Sensex dropped over 200 points in early trade on Monday tracking losses in index majors Infosys, HDFC and TCS amid a mixed trend in global markets. In a highly volatile opening session, the 30-share BSE index was trading 203.52 points or 0.42 per cent lower at 48,831.15. Similarly, the broader NSE Nifty fell 70.60 points or 0.49 per cent to 14,363.10.