Rupee falls to 55.91 against the dollar

The rupee weakened in afternoon trade on Tuesday, on dollar demand from oil companies and a fall in Euro. It had strengthened to its highest in more than a week earlier, tracking a slight revival in risk-taking in other Asian markets.  The Euro had strengthened against the dollar earlier as bear market players trimmed bets ahead of G7 emergency meeting on Europe crisis and hopes of stimulus hit demand for safe haven currencies such a...