New Delhi, Dec 15 (ANI): Trading at the Bombay Stock Exchange today closed 31.12 points down to stand at 27,319.56. At the National Stock Exchange the Nifty closed 4.50 points down to stand at 8,219.60. MMTC and Sunrise Asian Limited were among the top gainers of Group A with an increase of 12.41% and 9.86% along with ATUL and JPINFRATEC with an increase of 8.26% and 7.73% respectively, while the top losers of Group A include PMCFIN and JETAIRWAYS with a decrease 9.18% and 7.19% along with PIPAVAV DEFENCE AND OFFSHORE ENG LTD. and ABAN OFFSHORE LTD. with a decrease of 6.02% and 5.55% at the close of the markets. The Auto sector is down 70.52 points at 18,603.98 while the banking sector is up 73.08 points at 21,048.29 and the reality sector is down 32.94 points at 1,557.43. The Indian currency is up 1.02% at Rs 62.92 per dollar.