Hello Koushal !
Thank you for posting on Microsoft Learn Q&A.
Approval for Azure Face API with limited access can take quite a while because Microsoft has moved it behind a gated access process since 2022. Unlike other Cognitive Services, you can’t just create it directly from the portal anymore and every request goes through a Responsible AI review.
You won’t get approval updates in the portal. You typically receive an email notification from the email linked to your Azure subscription once the request is reviewed.
I recommend that you reach out to Azure support and if your use case doesn’t strictly require Face API, you should consider alternatives like Azure Vision API (detecting people/objects) or 3rd party facial analysis solutions while waiting.