Equity benchmark Sensex advanced over 100 points in early trade on Thursday, tracking gains in index majors L&T, HDFC Bank and HCL Tech amid a largely positive trend in global markets. The 30-share BSE index was trading 111.50 points or 0.21 per cent higher at 53,015.55 in initial deals, while the broader NSE Nifty rose 31.30 points or 0.20 per cent to 15,885.25.