On Friday, the benchmark indices were trading higher with the Sensex down around 85E points or 0.11% at 71,933 while the Nifty-50 down around 30 points or 0.14% at 21,689. About 2,130 shares have advanced, 1,483 declined, and 139 are unchanged on the BSE. Top gainers and losers on the BSE Sensex index are as …