New Delhi, October 15 (ANI): Trading at the Bombay Stock Exchange today closed 89.58 points down to stand at 20,517.96. At the National Stock Exchange the Nifty closed 23.65 points down to stand at 6089.05. MCX and Jaiprakash Associates Ltd. were among the top gainers of Group A with an increase of 4.99% and 4.65% along with Nestle India and JP POWER with an increase of 3.92% and 3.38% respectively, while the top losers of Group A include Bank of India and Canara Bank with a decrease of 7.27% and 6.60% along with Karnataka Bank and Union Bank with a decrease of 6.34% and 5.89% at the close of the markets. The Auto sector is down 71.01 points at 11,942.44 while the banking sector is down 355.92 points at 11,798.43 and the realty sector is down 24.66 points at 1,325.13. The Indian currency is down 0.54% at Rs 61.88 per dollar.