The QR code will consist of the following key particulars of the e-invoice:

• GSTIN of Supplier 
• GSTIN of Recipient 
• Invoice number, as given by Supplier 
• Date of generation of invoice 
• Invoice value (taxable value and gross Tax) 
• The number of line items g. HSN Code of the main item (line item having highest taxable value) 
• Unique IRN (Invoice Reference Number/hash) 
• IRN Generation Date