Nifty Oil & Gas emerged as the biggest sectoral loser, declining 2 percent, followed by Nifty Metal and PSU Bank, which fell 1.7 percent each. Nifty IT slipped 1.4 percent, while Nifty Auto dropped 1.3 percent. Losses of 1 percent were also seen across Nifty FMCG, Private Bank, and Realty indices. On the positive side, Nifty Pharma was the sole gainer, ending the session up 0.5 percent.