Hi Pranav,
Thank you for reaching out to us on the Microsoft Q&A forum.
By default, the vCPU quota limit for the N-series VM family is set to 0 in Azure subscriptions. To enable the N-series VM family, you must request a vCPU quota increase for a specific region. The subscription quota and capacity management team will review and approve your request accordingly.
To increase the quota, you need to raise a request as explained in the below reference.
Increase regional vCPU quotas - Azure Quotas | Microsoft Learn
For complete quota information, see Azure subscription and service limits, quotas, and constraints.
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