There are many maps showing areas disputed between India and its neighbors. This is perhaps the most comprehensive. It appeared in the “Economist” some years ago.
https://qph.ec.quoracdn.net/main-qimg-75d186666dba61850c45d3234cf04ae1
Though you may find this more convenient:
Note that nothing much had happened in the past in the “central” portion, where China borders Uttarakhand and Himachal Pradesh. Now Chinese troops have started intruding there as well-apart from the better-known Barahoti in Chamoli district of Uttarakhand, there are also reports from Kinnaur district of Himachal Pradesh.
This map of Himachal Pradesh shows the districts:
We can see that Kinnaur and Lahaul-Spiti districts share borders with China.
Now see this map of Kinnaur district:
Incursions have been reported in the vicinity of Sumdo.
Here is a Google Maps extract showing the border post of Kaurik:
Unlike in the case of most of our northern borders, roads seem to exist to within a few km of the border here.
A longer list of disputed areas can be seen here:
https://en.wikipedia.org/wiki/List_of_disputed_territories_of_India