@Santanu Dey
Within Azure, Azure RBAC will be the IAM role a resource or identity needs to access other resources. However, in order to give you a better answer, is there a specific resource you're referring to? Or a specific scenario?
Additional Link:
How to determine the scope for a resource
Any additional information would be greatly appreciated!
If you have any other questions, please let me know.
Thank you for your time and patience throughout this issue.