It's up to India at the G20 summit to, with the help of the US, project its power in light of China's border claims and show that it is moving away from Chinese dependency. As both China and India continue to joust with one another, India must put its best foot forward and project itself at such an important event as a nation that must be respected in the same manner as any other global superpower.
Although India and China remain at odds over several flashpoints, they're aligned on several key issues. The West, however, is quick to exaggerate any differences at the first sign of trouble — while ignoring its own differences with New Delhi — in order to polarize Beijing and contain its expanding influence. These deliberate disruptions will only hinder global cooperation.
There's a 15% chance of a China-India war by 2035, according to the Metaculus prediction community.