This is not the fault of religion it is the fault in the teching and how the people grasp it.
In Qur-an when it is clealy mentioned that fight against all the people (by any means)who are not muslim untill they get converted to islam or kill them.
If this is the base of religion then Muslim themselves are to be blamed.
As far as Hydrrabad is concerned Majority are Muslims and politicians are hungry of Vote Bank rather than the Security of the country. As such the people who are the citizens of this country but have their faith in other countries like Pakistan, Bangladesh are taking part in such happenings. These people are local and hence cannot be identified unless they do some act of cowardness.