Mumbai, Jan. 20 -- The Indian rupee recovered slightly in opening trades on Tuesday tracking weakness in greenback. Dollar index slipped below 99 mark amid rising tensions between the United States (US) and the European Union (EU). US President Donald Trump reportedly said during the weekend that a 10% tariff would be imposed from February 1 on goods from Denmark, Sweden, France, Germany, the Netherlands, Finland, Britain, and Norway until the US is allowed to purchase Greenland. INR opened at Rs 90.90 per dollar and hit a low of 90.91 in range bound movement so far during the day. Yesterday, rupee slumped past Rs 91 per dollar during intraday moves amid renewed concerns over global trade uncertainties accelerated foreign fund withdrawal....