@Kireeti Dharma Apologies for late response here! After Internal discussions and more research on your ask here it came out that-
Unfortunately, there isn’t currently a proper direct/zip deployment API for Static Web Apps so there’s no Azure CLI or PowerShell support.
The best way to accomplish this today is via the SWA-CLI: https://azure.github.io/static-web-apps-cli/docs/cli/swa-deploy
Having said that suggest you share your feedback for Azure Static webapp on Uservoice - All of the feedback, you share in these forums will be monitored and reviewed by the Microsoft engineering teams responsible for building Azure. Additionally, users with a similar request can up-vote you post and add their comments.
Hope this helps. Please let us know if further query or issue remains.