IST, the barometer index, the S&P BSE Sensex, dropped 409.02 points or 0.50% to 81,699.69. The Nifty 50 index fell 113.15 points or 0.46% to 24,655.15.
Oil and Gas stocks were trading in red, with the BSE Oil & Gas index decreasing 191 points or 0.71% at 26890.39 at 13:41 IST.