As the Covid situation is worsening in India China have started to test it's luck again. On top of it govt. is also busy to destroy one of the biggest strong hold of communist in country. We are again in for a long game.
4000 KM is more then enough distance....
If you draw direct distance of shanghai from Tezpur and then Go towards Beijing it is still less than 4000km....
PLA has intruded into five areas of western Bhutan and laid claim to a new boundary that extends approximately 40 km inside bhutan, to the east of chumbi valley : Report