New Delhi, March 20 (ANI): Trading at the Bombay Stock Exchange today closed 79.74 points down to stand at 21,753.12. At the National Stock Exchange the Nifty closed 40.95 points down to stand at 6,483.10. JSW ENERGY and TTK Prestige were among the top gainers of Group A with an increase of 6.19% and 5.33% along with TV18 Broadcast and United Spirits with an increase of 3.53% and 3.52% respectively, while the top losers of Group A include Mahindra and Mahindra Financial Services Ltd. and Indiabulls Real Estate Ltd. with a decrease of 5.01% and 4.60% along with Unitech and BPCL with a decrease of 4.37% and 4.07% at the close of the markets. The Auto sector is down 133.97 points at 12,643.02 while the banking sector is down 176.29 points at 13,738.32 and the realty sector is down 30.87points at 1,344.74. The Indian currency is down 0.40% at Rs 61.20 per dollar.