These notes are of excellent quality and not printed by petty criminals, and why would petty pakistani criminals go to BD and Nepal with indian notes, they can simply print fake pakistani notes and distribute in pakistan and be rich
Not to mention pakistani diplomats have been caught too.
Fake notes serves two purposes - 1) pakistan can buy people out and pay their terrorist assets with fake money - thus keeping cost to a minimum - 2), weaken indian economy by weakening indian govt's ability to exercise an effective monitary policy.
Its one of the smarter projects of pakistani state, one that is not likely to blow up in their own face, unless India can make it. And I hope we are working on that.