India is actually being quite slow in their response. The general feeling seems to be that India doesn't want escalation, but also do not want to be seen as being bullied by China.

The situation right now is being described as 'tense but calm'.

China changed all of the nation's maps to now include an added claim on a new piece of land in Ladakh. China also works very closely with their new proxy Govt (Oli's Nepal). So, at the same time Nepal is also changing their maps and laying claim on new land that they did not previously stake claim to.

So now technically India is occupying Chinese property, and they China been clear in wanting to use force to claim it.