মুক্তিযুদ্ধের সময় কয়টি সেক্টর বিভক্ত ছিল?

who compiled and edited the documents of liberation war of Bangladesh?

Two valiant freedom fighters who have been awarded 'Bir Protik' title-

The lady freedom fighter in the liberation war who was awarded "Bir Protik" is---

Which district was first set free from enemy during the liberation war of Bangladesh?