By your yardstick given the 2 front scenario, we ought to be carrying 100% redundancy. I doubt we have even 10% of it. Further I sincerely hope all those advocating for a 1 month time period to vivisect Paxtan take due note.
If you've small bands of infantry / irregulars operating across the country armed with MANPADS, MPATGM, mini drones as well as regular ones like TB -2 coupled with a population where arms & ammo are as freely & easily available like the ubiquitous cell phones, we'd have to go in for a policy of total annihilation of population centres which means total air superiority & dominance within 7 days before undertaking relentless air to ground campaigns .
It's only after this we can think of boots on the ground.
Unlike our armoured groups, Pakistanis keep leaner formations. Like we have 59-62 tanks a regiment. They keep 44. And our 3 formation each have 5-7 such regiments. While they keep it between 3-5.
So a large number of their Tanks are actually under their mechanised formations. BMPs running into such a mechanised formations will be sitting ducks.
The only option is to have good fire power.
1. Have a very large arsenal of conventional subsonic cruise missiles (2000-3000 for each front ) along with equally larger number of cost effective BMs. Pralay and Agni P. Also very large numbers (thousands ) of loitering munitions.
And we need to fire 50% of these within hours at the start of the conflict. This will cripple a large portion of their infrastructure.
2. We need very large numbers of mobile artillery and mobile SAM coverage throughout our frontiers. A 155/39 mounted Gun on a truck will keep area between 15 to 25km easily sanitised , thus ensuring good defence. And mobile air defence will mean enemy aircraft will not be able to take out those mobile artillery pieces. We already have a large stockpile of ATGMs. They will ensure any armour thrust will be taken care of.
3. Very lean and highly mobile composite battle groups with tanks, IFVs, attack helicopter, transport helicopters , mobile SAM, etc.
While we are looking at the 3rd point. We are totally ignoring the 1st and 2nd points.
Russia did a mistake of not using the 1st point within the 1st hour of conflict and they will pay for it.
And following the 2nd point will mean a defence even the combined Chinese/Pakistani assault will not be able to break. 2nd point will also ensure that mosquitoes like ch4 , wl2 and tb2a are mosquitoes and nothing more.