Do you know 90% of "General Knowledge" questions in any entrance exam and job exam come from permanent general knowledge? Permanent general knowledge refers to those general knowledge questions that never change.
In this book, all the enduring questions of Bangladesh and the world are written simultaneously. Many model tests are given. Through that, you can acquire your skills sitting at home.
So, if you want to do well in various competitive exams
Collect "S@ifur’s Tekshoi Test" book.