Round-tripping of funds through Mauritius will soon be a thing of the past. On Wednesday, India formally signed the much awaited tax treaty with Mauritius which has been the top pick for foreign investors to route their portfolio investments into India. The double tax avoidance agreement will come into force on the 1st of April 2017 and all capital gains from investments routed through the island country will be taxable at half the applicable rate which is 7.5 per cent as of now. Here's a detailed report.