Equity benchmark Sensex ended 226 points higher on Monday following gains in index heavyweights TCS, HCL Tech and Reliance Industries amid a positive trend in global markets. After rallying over 450 points during the day, the 30-share index pared some gains to end 226.47 points or 0.41 per cent higher at 55,555.79. Similarly, the broader NSE Nifty advanced 45.95 points or 0.28 per cent to 16,496.45.