JH-7's, J-8s and Su-30s equipped with antiradiation missiles escorted by J-10s and J-11s under the command of KJ-2000s will annihilate all indian SAM sites and destroy most of the indian air force on the ground.
By that same logic, IAF could send Mig 27 and Jaguars, escorted by Su 30 MKIs and Mirage 2000, with guidance from A50 Phalcons to do the same right?
The defense capabilities of India aren't that low as they were in the past, in techs we are even pretty much at the same level if you compare it correctly. Even the advantage of surprise is low, because Indian forces switched the focus from Pakistan to China long ago and why weapon developments and procurment are aimed on countering China.
Your are mistaken if you believe achiving air superiority over India will be so easy, let alone that countries like Russia, or even the US will just watch and don't intervene. India is too important for them these days and especially the US needs India as a counterweight to China.
But of course it will be the other way around too, Indias offensive capabilities against China are not existent at the moment, neither bombers, long range missiles, nor SSBNs, or carriers are available that would pose a threat, but all these (except of the bombers) are under development and that exactly is what makes China nervous.
Till now, only South Korea, Japan together with the presens of US forces in the east was a threat to China. With India getting stronger in the west too, China feels the feels the string of perls suddenly itself.
However, imo opinion, we should not do western countries the favour and stop our booming economies, just because of some minor border problems. They fear a strong Asia with major economies like, Russia, India and China, as well as South Korea and Japan way more, than our military power.
We don't have to be best friends to be good trade partners and we don't have to be allies to have a common opinion on Asian problems and we will have the most advantages if we concentrate on improving ourselfs and countering the west, instead of each other!