Equity benchmark Sensex surged over 300 points in early trade on Monday, tracking gains in index majors HDFC, Reliance Industries and Infosys amid a positive trend in global equities. The 30-share index was trading 333.69 points or 0.63 per cent higher at 52,920.53 in initial deals, while the broader NSE Nifty advanced 101.65 points or 0.64 per cent to 15,864.70.

Titan was the top gainer in the Sensex pack, rising around 2 per cent, followed by Axis Bank, Bharti Airtel, HDFC, Maruti, Bajaj Finserv, Infosys and Reliance Industries. On the other hand, Tech Mahindra, Sun Pharma, NTPC, PowerGrid and Dr Reddy's were among the laggards. In the previous session, Sensex slipped 66.23 points or 0.13 per cent to close at 52,586.84, while the broader NSE Nifty dipped 15.40 points or 0.10 per cent to 15,763.05.