Haha no problem at all with 24/7 monitoring? And I assume it would be flawless monitoring forever? I am sure India would like to take some advice from this monitoring technique. Forget India, technologically most advanced nation, US, has trouble sometimes with 24/7 monitoring mexico border.
Speaking of US, their border protection agency comes under government. So its the govt. job really. In Pakistan, since almost every govt. entity is so inept they throw every responsibility at Army and people, as evident, have come to believe its Army's duty.
Even if we go with your idea, pray tell who is going to provide you funding or resources for this constant operation? Fuel, manpower, maintenance, technology. The items we have is not even 5% to take care of this problem for a week, forget forever 24/7.
This is not a solution but further problems down the road.
What Pakistan does need is a few strikes on on-going infiltration to at least do enough psychological damage that the mind slaves might becomes a little more reluctant to follow RAW's orders. Complete halt and 24/7 are fairy land ideas.