In the Sino-Indian War, what would happen if Kashmir were captured back then?

China will not capture the entire Kashmir

Because of the conflict between China and India, China’s request is very simple. I just want to take back the historical control area, which has been mine since ancient times. I take it back, not that I don’t want any of it. Historically, a large area of ??Kashmir did not belong to China, and many parts of this area were deserted. Even if China could occupy it, it would not mean much.

The most important thing is that the war between India and Pakistan is because of the ownership of Kashmir. It is good for China to retain this Kashmir for them to compete for.