On Friday, the benchmark indices were trading lower with Sensex down around 191 points or 0.30% at 63,048.42 and the Nifty trading down by 76 points or 0.40% at 18,696.45. About 940 shares have advanced, 2,042 declined, and 117 are unchanged on the BSE. Top gainers and losers on BSE Sensex Index are as follows: …