Guide for Treatment of different Business Transactions in GSTR 3B & GSTR 1

It has been A year of GST and we are still figuring out exact treatment of different business transactions like  Export, SEZ, Merchant Export, Import, Deemed Export, Etc…in GST returns. These all items need to be specifically shown in GStr 3B & GSTR 1 at respective rows. I have prepared a complete Guide for this..,  A GUIDE FOR TREATMENT OF DIFFERENT BUSINESS  TRANSACTIONS IN GSTR 3B & GSTR 1