What will be the aircraft procurement strategy? Numerous factors, including geopolitics and economics, will influence this. Additionally, we may decide to add new air defense and satellite monitoring systems based on how well our current air defense systems performed. Keep in mind, we are also not going to move funds from development projects since they are beneficial for large employment, and the middle class is already burdened with lots of taxes.
Regarding the S500, I am not sure how much the J35 Stealth will perform against the S400 (Chinese systems are known to be more of a propaganda). Once J35 is within range of the ground system, Rafael can track it with passive systems.
The one major plus point is that the brahmos NG gonna debut next year, once it's operational, which will make every fighter jet in IAF capable of firing brahmos, su30mki can carry 5 of those, a cruise missile with Speed of Mach-3.5, flying low and barrages of them, will take out any base out of the equation,
Pakistan landmass doesn't give them
a luxury to hide Thier jets, every corner of Thier country are within stand-off ranges, now the Star missile test are taking place, we can count that to for striking Pakistan military infrastructure, which is another supersonic cruise missile and will be economical sustainable for longer duration,
You always don't need to counter the enemy with the conventional tactics, some times you need to counter with unconventional tactics, like how in cold war nato built better fighter jets but soviet union made good countering SAM'S to fight them,
Now Russians are focusing on orshenik, which demonstrated that it can strike Deep and can do greater damages, And IAF with brahmos showed that it can strike Deep in enemy territory, when ever it wants, we can't match the PlAAF numbers but we can make the AD systems dense with upcoming qrsam, akash NG, project kusa, additional regiments of MRSAM and Akash, IACCS is battle proven, there will be improvement & upgradation after this conflict and integration of new Data & tactics,