On Tuesday, the benchmark indices were trading flattish with the Sensex up around 65 points or 0.09% at 73,385 while the Nifty-50 up around 7 points or 0.04% at 22,104. About 1,907 shares have advanced, 1,650 declined, and 148 are unchanged on the BSE. Top gainers and losers on the BSE Sensex index are as …