On Monday, the benchmark indices were trading in the red with the Sensex down around 255 points or 0.34% at 72,888 while the Nifty-50 down around 69 points or 0.31% at 22,144. About 1,880 shares have advanced, 1,798 declined and 185 are unchanged on the BSE. Top gainers and losers on the BSE Sensex index …