Guess what will happen when there's some semblance of disengagement/peace? India will immediately raise eight mountain strike corps, because the PLA will be doing exactly that. Why? Xi Jinping's "make Tibet an impregnable fortress" directive to the PLA, and PLA's assumption that Tibet includes all of Ladakh, Sikkim, Bhutan, and Arunachal. PLA's biggest takeaway from the events since March 2020, is that it still has some way to go before it can scare India and achieve Xi's political goals without contact or a single bullet fired / single life lost on the ground.
India-China border will be as militarized as the Korean DMZ.
Hence my prediction that Indian troop-strengths will swell by 40-50%, with a proportionate upscale of equipment (radars, ALGs, light tanks, howitzers, MBRLs, attack helos, tactical transporters for para drops, surveillance equipment, MIL SATs, ASATs, border infra, tunnels, exotic railway projects such as Leh-Ambala, etc.).
Right now China's India posture is an over-reliance on technology that the border-clash situations seldom demand. For example, contact at Pangong Tso will not warrant the PLA unleashing a rocket volley.
Therefore the objective for both sides will be troop-strengths, and ensuring that every border feature (peak, ridge, valley, plain) is manned, so there's absolutely no scope for movement by the other side.