Will it be possible to bulk upload invoices to IRP?

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Will it be possible to bulk upload invoices to IRP?

Yes. It is possible. The offline utility (‘bulk generation tool’) serves this purpose.
Further, the ERP or accounting systems used by large taxpayers can be designed so that they can report invoices in bulk to IRP.
However, reporting to IRP and generation of IRN will be one after another (which will not be visible for users). For the user, it will appear like bulk upload and bulk receipt.