Of course we did! Withot that step, India would have faced many critical problems. Howevr, it could have been done in a better manner.
A neighbour is a neighbour and especially in South Asia, evryone is busy pulling others' leg. India could have guarded herself better in terms of boundary, stricter foreign policy and tit-for-tat principle.
Now that it is a very well known fact, terrrorism has got only one religion, and it is high time not repeating old mistakes and tighten its grip over the mischievous neighbours.