In modern day Pakistan, some of the youngsters have never even heard of "East Pakistan".
I don't know whether this has been deliberately and systematically written out of Pakistani history or whether Pakistan has simply been overwhelmed by other geostrategic events in South, Central and Western Asia, especially Afghanistan.
It was written out in Pakistan Studies book I read
+ Depoliticized
+ Sanctions after 1967 removed
+ Why it happened was removed
+ Who was involved was removed
+ What happened aftermath was removed
+ The Aircraft carrier help which never came was removed
+ No mention of Many Big Manufacturing companies or Banking collapse wiped up
Attempt to make public neutral
My grade 8-9 Pakistan Studies teacher on last day of course grouped students and stated
what ever I taught you is not real kid one day you will understand my words but good luck on your exams he was very apologetic , and had a smile after telling us the truth
It was quite a shocker when I learned that Bangladesh was Pakistan my first reaction was why would anyone want to create different country