That means China must be prepared to fight a full-scale war on two separate fronts simultaneously.
Thankfully, China has the Himalayan mountain ranges and the Tibetan Plateau as a natural shield. What China can do from now on are to build more airbases and runways + roadway strips, more roads and railway lines, plus more platforms and installations that will enable long-range operations of the PLAAF, PLAGF and PLARF across unforgiving terrain and on extended durations ().
In the meantime, China should start working towards establishing arrangements with Nepal, Myanmar and Pakistan that would allow the PLAAF to utilize their airspaces, PLAGF to station surveillance and intelligence equipment (and when required, transportation of troops, equipment and material through their territory), and PLAN to dock warships at their ports in times of war with India.
On the other hand, 2035? Really?