Union Home Minister Rajnath Singh has expressed concern over the law and order situation in Kerala saying political violence is unacceptable in a democracy. <br/><br/>In a series of tweets, the Home Minister said he spoke to Kerala Chief Minister Pinrayi Vijayan today regarding the recent incidents of political violence in the state. He hoped that the political violence will be curbed and that the perpetrators are brought to justice expeditiously. Protests erupted in the state after an RSS activist was murdered in Thiruvanathapuram last night.