New Delhi, Nov 12 (ANI): Trading at the Bombay Stock Exchange today closed 223.51 points down to stand at 20267.45. At the National Stock Exchange the Nifty closed 66.35 points down to stand at 6,012.45. Torrent Power and Bata India were among the top gainers of Group A with an increase of 5.60% and 4.31% along with National Aluminium Company Ltd. and Divis Lab with an increase of 4.08% and 3.74% respectively, while the top losers of Group A include MCX and Corporation Bank with a decrease of 10.03% and 8.88% along with Financial Technologies and Reliance Communications Ltd. with a decrease of 6.23% and 5.80% at the close of the markets. The Auto sector is down 168.62 points at 11,705.74, while the banking sector is down 224.91 points at 12,056.51 and the realty sector is down 15.62 points at 1,290.24. The Indian currency is down 0.85% at Rs 63.78 per dollar.