New Delhi, Jan 21 (ANI): Trading at the Bombay Stock Exchange today closed 50.04 points up to stand at 21255.09. At the National Stock Exchange the Nifty closed 12.55 points up to stand at 6,316.50. Suzlon Energy and Aurobindo Pharma were among the top gainers of Group A with an increase of 7.20% and 5.90% along with Biocon and Jet Air India with an increase of 5.85% and 5.48% respectively, while the top losers of Group A include Kotak Mahindra Bank and Allahabad Bank with a decrease of 3.10% and 2.89% along with CESC and Coal India with a decrease of 2.76% and 2.45% at the close of the markets. The Auto sector is up 106.66 points at 12,221.12 while the banking sector is up 198.25 points at 12,772.99 and the realty sector is up 8.01 points at 1,343.80. The Indian currency is down 0.28% at Rs 61.80 per dollar.