The problem is not with the UPA. A BJP led government can make no big difference, neither can the Left do anything about it. We dont have enough infrastructure and alertness to stop terrorism. Thats the main problem.
Moreover, many of these blasts are triggered for political reasons and it is frustrating to know that no serious probing has been done. With the alertness our government is having, what surety is there for prevention of such incidents in future ?
Btw, why is that there are no bomb blasts in Tamil Nadu or Kerala or other such states. Here, we live in peace, harmony and good will between ourselves. Even if a bomb was to blast in Chennai, the politicians or the terrorists would know that it would not lead to civil strife and that Hindus, Muslims and Christians will come out unitedly to oppose it. The whole of India needs to learn from places like TN, Kerala and stop blaming governments alone.