Sindh is extremely unlikely to have any high-level of insurgency, it's very well integrated in the mainstream
Just don't unfairly piss off Sindhis and they will be fine.
It's mainly tribal Pashtuns with support from Afghanistan that's an issue, and then the chauvinistic areas of Balochistan.
Mil-intelligence needs to devise a comprehensive solution to properly secure these areas- perhaps seek advice from the Chinese and Turks.
A stable Balochistan alone could solve Pakistan's economic issues - just make it as stable as Sindh. Just mass import a bunch of Pashtuns, Sindhis and Punjabis to the localities and arm them for self defence.
@Signalian What do you think sir?