The Sri Lankan rupee edged up on Tuesday as dollar selling by exporters outpaced demand for the greenback from importers, dealers said. Rupee forwards were active with one-week forwards trading at 148.15/25 per dollar at 0610 GMT, compared with Monday's close of 148.20/30. The rupee has been under pressure by selling of government securities by foreign investors, dealers said. Foreign investors have net sold 24.5 billion rupees ($165.6 million) worth of government securities in the three weeks ended November 2, data from the central bank showed.