New Delhi, May 15 (ANI): Trading at the Bombay Stock Exchange today closed 90.48 points up to stand at 23,905.60. At the National Stock Exchange the Nifty closed 14.40 points up to stand at 7,123.15.Titan Company Ltd. and Apollo Tyres were among the top gainers of Group A with an increase of 5.99% and 5.64% along with National Aluminium Co.Ltd. and Tata Chemicals Ltd. with an increase of 5.51% and 5.34% respectively, while the top losers of Group A include JandK Bank and Asian Paints with a decrease of 5.45% and 4.89% along with Motherson Sumi and Tata Chemicals with a decrease of 4.81% and 4.58% at the close of the markets. The Auto sector is down 65.84 points at 14,106.36 while the banking sector is up 23.32 points at 16,279.74 and the realty sector is down 16.94 points at 1,515.16.The Indian currency is down 0.59% at Rs 59.33 per dollar.