From the discussions here, it seems India will not be able to hold China if a war breaks out. Randomradio is known for him optimism but here for the first time I sensed concern and to some extent hopelessness in his post.
We can hold China, even defeat them considering the significant tactical advantages we have gained since August-end. But we will suffer unnecessary losses and casualties that can be avoided by only inducting some more of the air defence technology we already operate. It's also quite embarrassing to get killed the way the Armenians and Azeris are getting killed, since you are going to carry that on your back for a long time.
Take the Akash-1 SAM deployed at the border by the army. They are likely not very effective against small drones when under ECM attack. So some types of weapons will get through and kill our stuff on the ground. We need the Akash Prime to compensate, but orders are yet to be placed for the army and yet to be delivered to the air force. Which means, some threats will also get through the Akash defences even at air bases protected by Akash 1.