"The Prime Minister should go the UNHRC meet and raise the issue...Sri Lanka has miserably failed to deliver justice to the Tamil people there," he said during the Zero Hour.
While hundreds of people were "not traceable", several thousands have fled the country and over 40,000 have been killed by the Lankan armed forces in the past few years, Baalu said.
AIADMK members were seen thumping desks when Baalu ended his speech.