Hyperwarp
Captain
You might miss the Pakistan is not allowed to use their F16 against Indian target by the end user agreement. If proven to true, Pakistan will be pissed off by Uncle Sam. I think this is the reason India always insist F16 involvement.
I thought the agreement was for domestic usage only. Pakistan can use the F-16 and its weapons 'within' their airspace. The F-16 and everything related to it cannot be used beyond the borders of Pakistan regardless of offense/defense. So if the PAF F-16 crossed the line of control the US will be pissed (same with the AIM-120 C5). This is probably why they want to keep any F-16 engagement classified. I don't think there is any rule preventing the PAF from using their F-16 and AIM-120 if the IAF crossed into Pakistan airspace.