Every day, new disturbing details emerge about threat to the Prime Minister of India, leading to a greater tightening of his already stringent security. The first manifestation of this came three weeks ago, when an extraordinary revelation made its way to the headlines: that police, while investigating five people arrested for alleged Maoist links, stumbled across a secret letter which outlined a plot to kill the Prime Minister. The five had been arrested for inciting inter-caste violence that erupted in Maharashtra six months ago, arrests that drew widespread skepticism. As the news of the letter surfaced it escalated the debate to an even more frenzied pitch. Tonight, on Reality Check, NDTV uncovers a trail of u-turns, contradictions and charges that leaked to the media that are missing from the official record, leading to to the question: The police claims on 'Urban Naxals, is it fact or fiction?