Bismillahir Rahmanir Rahim Assalamu Alaikum, dear brothers, sisters and friends. The "Principles of Introducing Bid'at" is famous as the book written by Mohammad Manzoor Elahi. The book discusses the definition, types and examples of bidat. All the pages of this book are highlighted in this app. I published the whole book for free for the Muslim brothers who could not afford it. Hopefully you will encourage us with your valuable comments and ratings.