Failed* Strategy being...
Let the poor chaps on patrols and in checkposts at or around the borders die as long as cities are relatively safe.
Shun intel modernization and reform so we have no sophisticated way to raise the cost for RAW/Doval's operations (e.g., fear of consequences, tit-for-tat attacks, threats that can actually be followed up, etc.)
Stay defensive and follow a non-sensical denial based strategy that even Doval acknowledges was India's mistake for decades since it simply doesn't work. The only thing that works is pressure and introducing heavy costs for actions. All else is bullshit.
Failed strategy keeps the country relatively unstable but has no negative impact on DHAs and pensions/perks/privileges/plots of general officers. Hence it stays.
If you consider long range surveillance why not thinking about long range foot patrols from every bigger post, base, Camp. Every Station be it post, checkpoints, camps, bases Headquarters, should form long range foot patrols Teams.
„They would often venture miles and miles into deep enemy territory. Living off the local plant and wildlife. Becoming self sufficient in order to gain intelligence on enemy“
Insurgencies and terrorist movements with foreign support cannot be defeated, especially in difficult terrain and with porous borders (fencing doesn't change that much), without raising the cost for the foreign backers of the insurgency.
All tactics by "strategists" on PDF revolve around domestic measures whereas the very foundation of deterrence theory and strategic stability is based on the fear of consequences. If the enemy has none (i.e., if Doval and RAW believe they can keep supporting proxies that kill our men, women, and children with minimal personal and national consequences for them, then we are essentially rolling out the red carpet for them).
The ONLY thing that can work is when they know the same will happen in India (proper --- not just IOK, even though we sadly can't even achieve tit-for-tat in IOK, which used to be our backyard). Without fear of consequences, no playground bullies stop. No amount of hollow threats can help (like "befitting response" or "don't mistake our restraint for weakness.") Nobody 'mistakes' it for anything --- if you're having to 'clarify' this, you've already lost.
People need to understand how power really works and flows.
My 2c. Peace.