@Banani Rath
Thank you for your post!
Looking through our documentation it doesn't look like there's a way to bulk/programmatically create AIRS subscriptions. However, for Azure customers with a billing account for the below agreement types, you can create subscriptions using an ARM template or programmatically.
Programmatically create Azure subscriptions with an Azure Resource Manager template
For more info - https://learn.microsoft.com/en-us/azure/cost-management-billing/manage/create-subscription
I've also added the "azure-cost-management" tag to this thread to see if anyone from their community might know of any other methods.
If you have any other questions, please let me know.
Thank you for your time and patience throughout this issue.
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