Well, China will need a lot of long-range standoff weapons then. The ones deployed by H-6 and JH-7 only have ranges of around 180km, which would be well within India's early warning radar zones.
What I'm told is that there's an airlaunched version of CJ-10; supposedly the CJ-20.
In terms of holding off Indian capabilities, there's no technological limitation on the Chinese side; i.e, the most you could claim is that the Chinese need a nice current-generation 100mm top-attack ATGM for the ZTQ-15s (point of 100mm is so that it'd also fit into Type-59s and other obsolescent reserve tanks). The J-10 could also be upgraded further to give it a clear superiority over the Rafale in matching the emergency 11G capability, but the J-20 can handle the Rafale as much as any other 5th gen could handle a 4.5++ gen aircraft.
The bigger limitation for the PLA is deployed capabilities on the Tibetan plateau; for instance, the same DF-16s pointed at Taiwan, were they massed on the Indian border, could put every single Indian airbase under threat and threaten Indian cities without resorting to nuclear weapons. To the best of our knowledge, there aren't DF-26s loaded up on TAR to snipe Indian ships the moment they're in deep water and unsalvageable. And of course, PLAAF airbase infrastructure in Tibet is serviceable (lots of civilian airports), but generally shoddy (needs dedicated stealth hangars for J-20s and munitions and fuel stockpiles).
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The Indians, properly speaking, are an annoyance, not a threat. Unless China is distracted with a Taiwan scenario (and one possibility for Ladakh is to prevent the Indians from interfering in a Taiwan scenario with a flank attack), there's nothing the Indians can really do to China. The Himalayas make land invasion to either side of the border onerous and the fact that the Chinese command the strategic high ground means that they can lob ballistic missiles at India from relatively protected positions.
I think the Chinese goal with India is to get them into a state where India can't provide a threat to a Chinese attempt on Taiwan, because they're diplomatically contained (neutral or allied), or because their military capability has been neutralized.