"We are only concerned about the civilian casualties. We are not supporting the cause of LTTE and Prabhakaran. It is a banned organisation in India," Congress media department chief M Veerappa Moily told Indian media.

Asked whether the move by DMK MPs to resign within a fortnight was a threat to the UPA government, Congress media department chief said they have only expressed their concern.

To a question what the government can do beyond expressing concern, Moily said that in bilateral relations, such things do matter.