I don't think there's been a full-scale war between two large countries in a long time. Both China and India have more to lose than to gain by getting into a major fight, I think, so I wouldn't expect to see one.

Neither side would want to be seen as backing down, but I think right now India has more friends in the West, in particular while Trump is in office. China also tends to see the status quo as a win, so if they're able to get back to "normal" without looking weak, I think they might deescalate.