Re: "fist fights"
Something rarely reported is that, over and above being well across and into Indian territory, the Chinese brought a squad 6 times larger than both sides' standard border patrol. Both sides surveil each other continuously so this is well-known.
I.e. yet another passive aggressive piss-take by China.
If you'd wondered why the Indian army seemed to perform so poorly (China's military has been a startlingly poor combat performer in every military action for hundreds of years), consider how well YOU'D do vs 6 guys attacking you unexpectedly with pre-prepared long weapons customised for lethality.