On Monday, the benchmark indices were trading higher with Sensex up around 122 points or 0.18% at 66,183 and the Nifty-50 up around 50 points or 0.24% at 19,615. About 2,158 shares have advanced, 1,181 declined, and 183 are unchanged on the BSE. Top gainers and losers on BSE Sensex Index are as follows: The …