The overt nuke posture by pakis is a well known tactic.
India shouldn't counter mobilize it's nukes. Rather it shouldn't even respond to the nuke threat.
It should continue to keep it conventional theater. At the same time, that nuke threat can only be used as a leverage if we counter mobilize, which spooks the international community. Which will help pakis cause.
Let Pakis indulge in nuke sabre rattle while we bomb their targets with precision and degrade their ability to wage war.
Besides, we have our second strike asset sitting somewhere deep in the ocean.