Equity benchmark Sensex rebounded 454 points on Thursday, boosted by gains in index heavyweight Reliance Industries amid a positive trend in global markets. The 30-share index ended 454.10 points or 0.78 per cent higher at 58,795.09. Similarly, the NSE Nifty surged 121.20 points or 0.70 per cent to close at 17,536.25. Reliance Industries was the top gainer in the Sensex pack, soaring over 6 per cent, followed by ITC, Infosys, Tech Mahindra, Titan, Bharti Airtel and PowerGrid.