I kinda believe things might turn out different ..
My guess is that cold start doctrine will not happen or even work... and both countries will first fight it out in the air..the one who wins that will command further battles and ultimately the war..
Without air battle being decided the risk to armour advancement is too high..
In such case A10s/su 25 will not work you would need high performance jet that can fist counter IAF..
Drones armed with laser guided weapons should however work early on given their Long endurance and lower cost
This beleive that world might come to end the war is also flawed..historical it has not happened...
Therefore a long protracted war is possible ..
In such war the air battles will first be decided once that is decided the winner will push with armour assualt ...
This will all remain below nuclear threshold as till armour assualt loss of life will be low.
India is increasingly questioning the nuclear threshold(dangerously) anyway
In summary PAF needs to revamped so it can ensure that IAF doesnt attain airsuperiority over battlefield...after that armoured core should have independent assests for airsupports /denial (gunships/drones/SAMs) to ensure protection ...
If IAF does dismantle PAF early on then army gunships & drones will simply become target practice for IAF