@hitesh chandwani Thank you for reaching out to us. As I understand you are looking for an option restrict access to a resource group outside country via Azure RBAC.
Researched on this requirement, unfortunately this is not possible to achieve .
Azure RBAC allows admins to grant only the amount of access that users need to perform their jobs. Access is granted by assigning the appropriate RBAC role to users, groups and/or applications at a certain scope. The scope of a role assignment can be a subscription, a resource group, or a single resource. A role assigned at a parent scope also grants access to the children contained within it.
Would suggest to share your feedback on https://feedback.azure.com/d365community which is closely monitored by our product group team for any feature requests.
Let me know if you have any further questions.