New Delhi, October 23 (ANI): Trading at the Bombay Stock Exchange today closed 97.09 points down to stand at 20,767.88. At the National Stock Exchange the Nifty closed 24.45 points down to stand at 6178.35. Gitanjali Gems and Hindustan Copper were among the top gainers of Group A with an increase of 16.48% and 10.93% along with MMTC Ltd. and Bank of India with an increase of 9.34% and 5.33% respectively, while the top losers of Group A include Wipro and Indiabulls Real Estate with a decrease of 4.41% and 3.99% along with JSW Energy and Jain Irrigation with a decrease of 3.90% and 3.59% at the close of the markets. The Auto sector is down 87.22 points at 11,862.87 while the banking sector is up 69.39 points at 12,419.69 and the realty sector is down 20.30 points at 1,370.01. The Indian currency is down 0.17% at Rs 61.55 per dollar.