NFF Leader and Housing and Construction Minister Wimal Weerawansa is to lead the protest against the report by the experts panel appointed by UN Secretary General Ban Ki-moon at the May Day rally.
The NFF is to join the May Day rally of the governing UPFA on Sunday.
Weerawansa has told the media that the NFF will campaign against the panel report as it would bring serious repercussions to the country.
The party has already commenced a poster campaign island wide against the report.
Weerawansa has also charged that some political parties in the country are following double standards with regard to the report.