Bismillahir Rahmanir Rahim Assalamu Alaikum, dear brothers, sisters and friends. "Kabira Gunah" is famous as the book written by Shamsuddin Az-Zahabi. Kabira Gunah: The famous book Mukhtasar Al Kabayer compiled by Imam Shamsuddin Az Zahabi, which has been translated into Bengali and given the name Kabira Gunah. This book has aroused a huge response among the people. With the help of this book, people can know what Allah has forbidden. This book is an important guide in identifying major sins and avoiding them. All the pages of this book are highlighted in this app. I published the whole book for free for those Muslim brothers who could not afford it. Hopefully you will encourage us with your valuable comments and ratings.