since we are upgrading border infrastructure with proper roads... it has rattled PLA.
senior PLA leadership know in case of future hostilities India can bring troops faster. To thwarted that Chinese tried to build bunker on four places at Galwan specially on Gogra top and one on northern side of pangong lake. they are backing there build-up there with armoured and around 30 artillery guns. While India neither brought armoured nor artillery. Even above video being circulated is not of Indian army but ITBP a police force basically..... officer is from Indian army though.
But after PLA silent sneak in thinking there won't be any reaction like in past.... Indian army started rapid build-up which rattled your military leadership. I think there will a rapid de-escalation on both sides and if PLA tries to act smart again things won't turn good for her and for region regards.
Personally I'm no fan of China being so hawkish with regards to these borders. They are not historically as "Chinese" as opposed to say Taiwan island. Or even HK where matters are relatively dire for CCP and the PRC as a whole by association. I would have happily settle the matter with India's satisfaction and then end this for all time. If any more encroachment or flare ups happen after that, then I'd be more justified in responding harshly. This could really be how the CCP will play this but just with much less magnanimity and slowly backing off. But they could also be uncompromising. We'll see in coming weeks/months maybe even years (CCP makes these sorts of moves very slowly and seemingly with a lot of planning).
However I trust if it really came to a proper war between the two, India will be comfortably defeated unless if wants to keep escalating to significant losses of both sides. Factor in further diminishing returns for China due to trade between the two currently very much in China's favour. Yet another reason why China will lose more when considering non-military concerns. So even if the military transgression ends in China's favour, it will lose a lot of income currently being made through the Indian market and it'll not likely be able to gain any new territories since it will still be regarded as either disputed or Indian by the international community and of course India itself.
So basically fighting for China will yield it no favourable solution since if it wins, the dispute is still there and China will be seen as the bad guy by everyone and if it loses, well it loses the territory and it'll lose face and CCP's lead will be questioned. Therefore I think chances of China really fighting here is slim to none even if they make some show of force in a hope to discourage very blatant Indian aggression. Modi probably already thought this through and have arrived at the same conclusions. How he plays it is important. If he makes it too obvious and insulting to CCP to Chinese people, then CCP's hand may be forced and rather than backing off, they may escalate this further towards a skirmish or war.
Fighting also takes a lot away from the eastern side unless both sides contain the fighting. Use of army is fine but will depend how much resources from the airforce is diverted from the east to the south west. The CCP's play (in light of facts being established that this is more Indian intrusion away from old positions) may actually be a slowed crash landing where they play off the significance of this issue and basically let India take chunks of this disputed area. Which India is doing because it has correctly (as far as we can tell) calculated non-involvement from the CCP.
Now the incorrect assumption made by many bhakts I've noticed is that China is not fighting because it is scared or unwilling. The truth if it stays this way, is more likely that it has nothing to gain from fighting and India simply made the correct moves at the correct time. However just like China not winning the disputed territory even if it wins a war, CCP may well revisit this in future when it is less distracted and re-engage with the status quo assumed from before India's recent movements. It goes both ways. Again I'd love to see this issue resolved and wouldn't really mind seeing some real skirmishes/war between India and China over these disputes.