Pune-28 Dcember 20 Social activist Anna Hazare has threatened to go on a hunger strike if his demands on issues concerning farmers are not met by the Union government by the end of January next year, and said it would be his “last protest”.Speaking to reporters in his Ralegaon Siddhi village in Ahmednagar district of Maharashtra on Sunday, Hazare said he had been holding protests for cultivators since the past three years but the government had done nothing to resolve the issues.“The government is just giving empty promises due to which I do not have any trust left (in the government). Let’s see, what action the Centre takes on my demands. They have sought time for a month, so I have given them time till January-end. If my demands are not met, I will resume my hunger strike protest. This would be my last protest,” the 83-year-old said.