On Tuesday, the benchmark indices were trading in the red with the Sensex down around 175 points or 0.21% at 80,350, while the Nifty-50 was down around 65 points or 0.26% at 24,444. About 1,506 shares have advanced; 1,958 declined and 175 are unchanged on the BSE. Top gainers and losers on the BSE Sensex …