Chennai, Sep 09 (ANI): Members of MDMK on Tuesday took to streets in Tamil Nadu, against participation of Sri Lankan President Mahinda Rajapaksa in UN General Assembly on September 25. Accusations of atrocities have been rife since the end in May 2009 of conflict between ethnic Tamil separatist rebels and Sri Lankan government forces that killed more than 100,000 people. Tens of thousands are unaccounted for. On Tuesday, MDMK chief Vaiko led the protest in Chennai and said Rajapaksa had insulted the dignity of the United Nations. In May, the Sri Lankan unit of Transparency International said the defense ministry had ordered the cancellation of a course on investigative journalism for Tamil reporters. Mob protests forced the cancellation of a second course in June.