The Sensex opened at ₹82,459.66, up from ₹81,909.63, and was trading at ₹82,742.16, gaining 832.53 points (1.02%) at 9:50 a.m; The Nifty opened at ₹25,344.15, up from ₹25,157.50, and rose to ₹25,424.70, up 267.20 points (1.06%)