New Delhi, Dec 24 (ANI): Trading at the Bombay Stock Exchange today closed 71.12 points down to stand at 21,029.91. At the National Stock Exchange the Nifty closed 16.95 points down to stand at 6,267.55. Gitanjali Gems and Century Tex were among the top gainers of Group A with an increase of 16.29% and 6.68% along with Apollo Tyres and ING Vysya Bank with an increase of 7.87% and 5.13% respectively, while the top losers of Group A include J and K Bank and Tata Power with a decrease of 4.66% and 2.98% along with SSLT and Hindustan Zinc with a decrease of 2.46% and 2.37% at the close of the markets. The Auto sector is down 5.49 points at 12,379.68 while the banking sector is down 64.12 points at 12,929.34 and the realty sector is up 1.37 points at 1,452.13. The Indian currency is up 0.13% at Rs 61.87 per dollar.