Equity benchmark Sensex surged 383 points on Tuesday, buoyed by Reliance Industries, Kotak Bank and Bajaj Finance amid a largely positive trend in global markets. The 30-share index ended 383.21 points or 0.63 per cent higher at 61,350.26. Similarly, the NSE Nifty surged 143 points or 0.79 per cent to 18,268.40. Tata Steel was the top gainer in the Sensex pack, spurting around 4 per cent, followed by Titan, Bajaj Finance, Nestle India and Tech Mahindra.