India's foreign minister and his entire team said they were self-isolating after two delegation members tested positive.Britain is hosting the three-day foreign ministers' meeting - the first such G7 event in two years - which has been billed as a chance to restart face-to-face diplomacy and a opportunity for the West to show a united front against threats from China and Russia.India, currently undergoing the world's worst surge in Covid-19 cases, is attending the G7 as a guest and had been due to take part in meetings on Tuesday evening and throughout Wednesday."Was made aware yesterday evening of exposure to possible Covid positive cases," Indian Foreign Minister Subrahmanyam Jaishankar said on Twitter."As a measure of abundant caution.