Tell me, how can a large scale incident planning be not noticed by others in the vicinity? There will be suspicion on the kind of acts taking place at home, in neighbourhood, etc. How come people don't become suspicious?
I feel sorry to say this- all these evil doeres have some strong local support. Otherwise, no external force can succeed. If Indian Muslims do not wish to be blamed, there is a need for more proactive action from them to stop these elements, not mere statements to media.