Koushik, Just to confirm the following should be OK for simulator usage then.
$ grep -R "tags" ~/projects/cloudstack/test/integration/component | grep "simulator" | grep -o -e "test_.*.py" | sort -u test_accounts.py test_affinity_groups.py test_allocation_states.py test_cpu_domain_limits.py test_cpu_limits.py test_cpu_max_limits.py test_cpu_project_limits.py test_custom_hostname.py test_deploy_vm_userdata_reg.py test_host_high_availability.py test_memory_limits.py test_mm_domain_limits.py test_mm_max_limits.py test_mm_project_limits.py test_non_contiguous_vlan.py test_project_configs.py test_project_limits.py test_project_resources.py test_project_usage.py test_projects.py test_regions.py test_regions_accounts.py test_reset_ssh_keypair.py test_resource_limits.py test_stopped_vm.py test_tags.py test_update_vm.py test_usage.py test_volumes.py
