Pakistan has a concept of good terrorists and bad terrorists. Terrorists against India (JeM, LeT) are good terrorists. They are protected and trained by Pakistan army (e.g. protection given to JeM leader). Good terrorists are sometimes declared dead to avoid international scrutiny while protected clandestinely (Sajid Mir).

Bad terrorists are of course that attack Pakistani Army (e.g. Baloch Liberation Army).

Notable is how Osama was protected by Pakistan army as he was a useful indirect source of income (war on terror)

Indias attack was aimed at the Good Terrorists of Pakistan. The hope is to reduce their capabilities. Not sure how much successful they have been though.