CHENGANNUR: Minister Saji Cheriyan has reiterated the allegation that there are extremist organizations behind the anti-K rail agitation in the state. He also alleged that training for extremist protests is being provided. The minister said that a person from a family close to him was 'bought'. "The Congress, the BJP and the SDPI are united. A campaign is being organized by paying up people in his native place", he said.