On Thursday, the benchmark indices were trading lower with the Sensex down around 535 points or 0.80% at 66,267 and the Nifty-50 down around 145 points or 0.75% at 19,756. About 1,674 shares have advanced, 1,528 declined, and 205 are unchanged on the BSE. Top gainers and losers on the BSE Sensex are as follows: …