Hello @Vishwajeetlohar,
The utility that can help you in the production stage is the MCUxpresso Secure Provisioning Tool version 8.0, in this software there is a "Manufacturing tool" section where you can load the . Axf to several Boards at the same time, the following image shows where this tool is located:
For more information about how this tool works, you can review chapter 5.7 of the document called MCUXpresso Secure Provisioning Tool User Guide v.8 which can be found in the following link: MCUXpresso Secure Provisioning Tool | NXP Semiconductors
It is important to highlight that this tool is only available from version 8 of the MCUxpresso secure provisioning tool, so it is important that you have it.
BR
Habib.
