The systematic killing of hindus or muslims are not the target..but disrupt the daily life of the people in India.
The government whichever comes to power inspite of having much intelligence services, they let it happen bcoz they don't get support from the state politics. This is the fact and it was cleary indicated in the hyderabad blast.
The politicians are busy with selling the integrity of Indians and India which they have done so long years for money.
So don;t blindly support any politicians or political party, any party comes to power shall not have the power to implement such a powerful tool unless there is a less opposition.