Hi @Trishant Deva , you can view all members and groups here: https://learn.microsoft.com/en-us/azure/active-directory/fundamentals/active-directory-groups-view-azure-portal
To view role assignments, you can do so here: https://learn.microsoft.com/en-us/azure/active-directory/roles/view-assignments
If you wish to assign new roles to users you can that here: https://learn.microsoft.com/en-us/azure/active-directory/roles/manage-roles-portal
Please let me know if you have any questions!
If this answer helped you please mark it as "Verified" so other users may reference it.
Thank you,
James