Equity benchmark Sensex rallied over 400 points in early trade on Monday, tracking gains in index majors Reliance Industries, HDFC and Bajaj Finance amid positive cues from global markets. After touching a lifetime high of 56,527.81 in the opening session, the 30-share index was trading 376.65 points or 0.67 per cent higher at 56,501.37. Similarly, the broader NSE Nifty surged 100.95 points or 0.60 per cent to 16,806.15.

Titan was the top gainer in the Sensex pack, rising over 2 per cent, followed by Bajaj Finance, Tata Steel, M&M, Maruti, L&T, Reliance Industries and HDFC. On the other hand, Tech Mahindra and HCL Tech were the laggards. In the previous session, the BSE index settled 175.62 points or 0.31 per cent higher at 56,124.72, and Nifty gained 68.30 points or 0.41 per cent to finish at a record 16,705.20