Hi Ganapathy,
You can manage all the Azure resources under the same policy in Azure Purview.
To manage all Azure resources under the same policy in Azure Purview, you can create a single policy that covers an entire resource group or subscription. This approach ensures that the policy provisions access to all data sources within that resource group or subscription, including both existing and future data sources.
But carefully, you’ll be able to manage access to all your Azure resources using a centralized policy in Azure Purview, what can be a not very easy way to manage resources. will depends of your strategy.