Equity benchmark indices Sensex and Nifty surged over 1 per cent on Thursday, taking their winning momentum to the third day running, amid growing optimism following easing geopolitical tensions and buying in market heavyweights HDFC Bank and Reliance Industries.

The 30-share BSE Sensex jumped 1,000.36 points or 1.21 per cent to settle at 83,755.87. During the day, it surged 1,056.58 points or 1.27 per cent to 83,812.09.

The 50-share NSE Nifty rallied 304.25 points or 1.21 per cent to 25,549.