At close, the Sensex was up 226.47 points or 0.41% at 55555.79, and the Nifty was up 46 points or 0.28% at 16496.50 led by quality large-cap stocks.HCL Tech was the top Sensex gainer, followed by TCS, Bajaj Finserv, Nestle India, and Bharti Airtel. Mahindra & Mahindra was the worst Sensex constituents followed by Bajaj Auto, Ultratech Cement, Power Grid, and ITC. About 745 shares have advanced, 2438 shares declined, and 135 shares are unchanged. The Nifty IT index gained 1.7 percent each and Bank Nifty gained 0.26% while metal, auto, and PSU bank indices lost 0.5-1.5 percent. The BSE MidCap and SmallCap indices slipped 0.9 percent and 1.5 percent, respectively.