Dollar ended at 67.9850 against its opening opening at 68.1500 .Dollar pared gains during afternoon trades Monday on selling by foreign banks and exporters .Few foreign banks sold dollars likely for foreign investors who invested into local government bonds after the Reserve Bank of India (RBI) relaxed norms for the overseas investors in Indian debt market, by increasing the cap on investment in government security to 30% of the outstanding stock of that security, from 20% earlier. On likely overseas funds outflow from local stocks amid caution regarding escalation trade tensions between the US and China after both countries announced tariffs against each other's import last week.......