New Delhi, Aug 18 (ANI): Trading at the Bombay Stock Exchange today closed 46.73 points down to stand at 27,831.54. At the National Stock Exchange the Nifty closed 10.75 points down to stand at 8,466.55. TATA Elxsi Ltd and Jaypee Infratech Ltd were among the top gainers of group A with an increase of 19.71% and 10.85% along with and Escorts Ltd and JK Tyre and Industries Ltd with an increase of 9.52% and 8.46% respectively, while the top losers of group A include Indian Bank and Kailash Auto Finance Ltd with a decrease of 4.89% and 4.86% along with SUN TV Network Ltd and GAIL (India) Ltd with a decrease of 4.48% and 4.43% at the close of the markets. The Auto sector is up 116.58 points at 19,454.47 while the Banking sector is down 42.14 points at 21,555.41 and the Realty sector is down 4.45 points at 1,406.31. The Indian currency is up 0.00% at Rs 65.32 per dollar.