The author of this article has simply said 'Pakistan is the root cause of terrorism' and then says that tit-for-tat will bring detente. Absolutely no explanation of how or why.
It's based on the false premise that eliminating or crippling Pakistan would somehow reduce terrorism, which is absolutely false as we have seen in Iraq, the US ostensibly crushed the Iraqi government on suspicions of terrorism and WMDs, what do we have now? ISIS, that's what.
So no, there will be no detente if India keeps behaving like this, falling prey to its delusions of grandeur.
And the whole 'intelligent mob' thing was laughable to say the least, not to mention the little reference to the Indian belief about Pakistan's nukes not working, hilarious.