Political parties in Tamil Nadu had stepped up pressure against Singh's participation and the Tamil Nadu assembly even passed two resolutions demanding a total boycott by India.
But Khurshid, who is representing India at the summit, has justified his presence saying there was need for India to remain engaged with Sri Lanka in the interest of Tamils of the island and also in the enlightened national interest of India.
Canadian Prime Minister Stephen Harper and his Mauritian counterpart Navin Chandra Ramgoolam also chose to keep away from the summit citing the “poor” human rights record of Sri Lanka while British Prime Minister David Cameron has said he will attend the summit to express his country's reservations on the issue.