On Tuesday, the benchmark indices were trading in the red with the Sensex down around 2,876 points or 3.75% at 73,671, while the Nifty-50 was down around 760 points or 3.27% at 22,505. About 612 shares have advanced; 2,894 declined and 124 are unchanged on the BSE. Top gainers and losers on the BSE Sensex …