MUMBAI, Aug 12: The stock markets continued its downtrend with on Wednesday mainly on selling pressure following the turmoil in Asian markets. The Bombay sensitive declined further by 20 points despite buying support by the domestic institutional, led by UTI.The BSE sensitive index opened at 2935.74, touched the day's high of 2989.92, low of 2924.24 before finishing at 2950.80, showing a net loss of 19.84 points against the previous close of 2970.64. Sensex has lost nearly 111 points during last three straight sessions. The BSE-100 index lost 11.48 points to 1319.31 from the previous level of 1330.79.Brokers said that the sentiment was further affected considerably due to the free fall of Indian currency which touched a historic low of Rs 43.35 in the afternoon, political uncertainty and worries about Asia's economic crisis disappointed the corporates.The total turnover amounted to Rs 910.21 crore. Tobacco giant ITC registered the highest turnover of Rs 208.54 crore.On the National Stock Exchange(NSE) share prices continued to decline on speculative selling pressure by foreign institutional investors and bull operators on the opening day of the current settlement. The S&P Cnx Nifty index fell by 6.40 points to 860.10 points from 866.50 points of the previous day. The total turnover was Rs 1,045.84 crore and the debentures traded value was Rs 8.71 lakh. About 388 scrips advanced, 490 declined and 106 remained unchanged today. 36 securities have hit their price bands today.