"This is a big loss, because if our relationship with our neighbour appears to breakdown, no one can say it will be a good thing," United National Party (UNP) general secretary Tissa Attanayake said.

Sri Lanka must work towards improving its relations with India, Attanayake said.

"We hope that at least after CHOGM, the government would work towards improving relations. We see a marked breakdown in diplomacy and foreign policy in dealing with India," he said.

The UNP reaction came following an announcement that Prime Minister Singh will not attend next week's Commonwealth Heads of Government Meeting (CHOGM).

Cabinet spokesman and Minister Keheliya Rambukwella said, "It was our responsibility to invite and anyone accepting it or not is their responsibility."

This is a 54-nation event and we have more heads of state coming than the last conference, he said.

On Sunday, Sri Lanka's External Affairs Minister GL Peiris had dismissed the impact of Singh's absence.

Peiris said Sri Lanka understands the domestic political compulsions which had forced the Indian PM to take such a decision.

Sri Lanka's relations with India on the diplomatic front have soured over the years exacerbated by the Indian backing of two US resolutions at the UN Human Rights Council against Lanka for alleged human rights violations during the final stages of the war against the LTTE.


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