New Delhi, Sept 16 (ANI): Trading at the Bombay Stock Exchange today closed 324.05 points down to stand at 26,816.56. At the National Stock Exchange the Nifty closed 109.10 points down to stand at 7,932.90. CASTROL INDIA LTD. and PEL were among the top gainers of Group A with an increase of 4.23% and 3.59% along with COLGATE-PALMOLIVE (INDIA) LTD. and FRL with an increase of 2.90% and 1.31% respectively, while the top losers of Group A include GMR INFRA and HDIL with a decrease of 10.26% and 8.03% along with JAIN IRRIGATION SYSTEMS LTD. and NATIONALUM with a decrease of 7.89% and 7.20% at the close of the markets. The Auto sector is down 310.11 points at 17,568.13 while the banking sector is down 369.47 points at 18,138.30 and the reality sector is 60.28 points down at 1,700.59. The Indian currency is down 0.13% at Rs 61.05 per dollar.