The State of Pakistan is a sponsor of terrorism, about this I hope there isn't a doubt in anyone's mind.
Pakistanis, by virtue of being citizens of Pakistan, are culpable when it comes to terrorism. Ignorance or poverty doesn't absolve them of this crime. This is the law of association. Nobody can fault India if it decides to pay back Pakistan in the same coin, but we chose not to do so. Our reasons are both practical and moral.
I personally feel one shouldn't celebrate the death of fellow human beings. It doesn't behoove a human, much less an Indian. We are better than that, and we certainly are better than them.
Indians as a whole have strong emotions about terrorist attacks, and there is pent up anger, urge for revenge and desire for justice in many of us. Whenever a Pakistani dies at the hands of fellow Pakistani freedom fighter/terrorist; it is taken by some of us as justice delivered and revenge extracted. And this presents an opportunity for a much needed emotional release. Some feel celebratory, some feel despair, some feel nonchalant.
However, by celebrating death of common Pakistani citizens, we degrade our moral authority, cheapen this act of "justice", and exhibit our base nature. We must rise above this animalistic mode. We must use this opportunity to mourn the victims of terror, to remind our neighbours of the follies of their acts, to realize that wicked never win, and to resolve to steadfastly adhere to highest moral standards and ideals . Lets not allow terrorism to bring us down, whether physically, morally or emotionally.