The evidence is very clear. Muslims and only muslims are involved in this kind of barbaric acts. They always claim that they kill kafirs. for a muslim all Hindus are Kafirs, and that is why they attack and kill them. Muslims do not believe in Indian constitution. Koran itself tells muslims to wage war against kafirs and thier nations. precisely that is what is happening in India now. Time has come for all Hindus to strike back at them in all possible ways. Both Violent and peaceful methods.