diff --git a/specs/stein/add-project-id-to-group-and-group-snapshot-response.rst b/specs/stein/add-project-id-to-group-and-group-snapshot-response.rst
new file mode 100644
index 00000000..c43e4a1f
--- /dev/null
+++ b/specs/stein/add-project-id-to-group-and-group-snapshot-response.rst
@@ -0,0 +1,183 @@
+..
+   This work is licensed under a Creative Commons Attribution 3.0 Unported
+ License.
+
+ http://creativecommons.org/licenses/by/3.0/legalcode
+
+=============================================================
+Add project_id attribute to group and group snapshot response
+=============================================================
+https://blueprints.launchpad.net/cinder/+spec/add-project-id-to-group-groupsnapshot-response
+
+This blueprint proposes to add ``project_id`` attribute to the response
+body of list groups with detail, list group snapshots with detail,
+show group detail and show group snapshot detail APIs.
+
+Problem Description
+===================
+
+Currently, the group and group snapshot show response doesn't include
+project_id.
+It is an important parameter while differentiating between multiple groups
+and multiple group snapshots in horizon.
+
+Use Cases
+=========
+
+As horizon is adding tabs for groups and group snapshots listing
+with detail in the admin panel[1], it requires project_id as a
+response parameter from the groups and group snapshots API.
+It is similar to what is implemented in volumes and snapshots list.
+
+Proposed change
+===============
+
+This spec proposes to add ``project_id`` attribute to the response
+body of list groups with detail, list group snapshots with detail,
+show group detail and show group snapshot detail APIs.
+
+Add a new microverion API to add ``project_id`` attribute to the
+response body of list groups with detail, list group snapshots with
+detail, show group detail and show group snapshot detail APIs:
+
+- List groups with detail GET /v3/{project_id}/groups/detail
+
+- List group snapshots with detail GET /v3/{project_id}/group_snapshots/detail
+
+- Show group detail GET /v3/{project_id}/groups/{group_id}
+
+- Show group snapshot detail GET /v3/{project_id}/group_snapshots/{group_snapshot_id}
+
+Alternatives
+------------
+
+None
+
+REST API impact
+---------------
+
+Add a new microversion in Cinder API.
+
+* List groups with detail::
+
+    GET /v3/{project_id}/groups/detail
+    Response BODY:
+    {
+        "groups": [{
+            ...
+            "project_id": "7ccf4863071f44aeb8f141f65780c51b"
+        }]
+    }
+
+* List group snapshots with detail::
+
+    GET /v3/{project_id}/group_snapshots/detail
+    Response BODY:
+    {
+        "group_snapshots": [{
+            ...
+            "project_id": "7ccf4863071f44aeb8f141f65780c51b"
+        }]
+    }
+
+* Show group detail::
+
+    GET /v3/{project_id}/groups/{group_id}
+    Response BODY:
+    {
+        "group": [{
+            ...
+            "project_id": "7ccf4863071f44aeb8f141f65780c51b"
+        }]
+    }
+
+* Show group snapshot detail::
+
+    GET /v3/{project_id}/group_snapshots/{group_snapshot_id}
+    Response BODY:
+    {
+        "group_snapshot": [{
+            ...
+            "project_id": "7ccf4863071f44aeb8f141f65780c51b"
+        }]
+    }
+
+Calling this method shows ``project_id`` for a group or group snapshot.
+It is intended for admins to use, which is used to display the project_id to which
+the group or group snapshot belongs, and controlled by ``GROUP_ATTRIBUTES_POLICY``
+or ``GROUP_SNAPSHOT_ATTRIBUTES_POLICY``.
+
+Data model impact
+-----------------
+
+None
+
+Security impact
+---------------
+
+None
+
+Notifications impact
+--------------------
+
+None
+
+Other end user impact
+---------------------
+
+None
+
+Performance Impact
+------------------
+
+None
+
+Other deployer impact
+---------------------
+
+None
+
+Developer impact
+----------------
+
+None
+
+Implementation
+==============
+
+Assignee(s)
+-----------
+
+Primary assignee:
+  Rajat Dhasmana <rajatdhasmana@gmail.com>
+
+Work Items
+----------
+
+* Add a new microversion.
+* Add ``project_id`` to the response body of list groups with detail,
+  list group snapshots with detail, show group detail and show group
+  snapshot detail APIs.
+* Add the related unit tests.
+* Update related list groups with detail, list group snapshots with
+  detail, show group detail and show group snapshot detail api doc.
+
+Dependencies
+============
+
+None
+
+Testing
+=======
+
+* Unit-tests and other related test should be implemented
+
+Documentation Impact
+====================
+
+None
+
+References
+==========
+
+[1] https://blueprints.launchpad.net/horizon/+spec/cinder-generic-volume-groups
diff --git a/specs/stein/add-project-id-to-group-response.rst b/specs/stein/add-project-id-to-group-response.rst
deleted file mode 100644
index 27476983..00000000
--- a/specs/stein/add-project-id-to-group-response.rst
+++ /dev/null
@@ -1,149 +0,0 @@
-..
-   This work is licensed under a Creative Commons Attribution 3.0 Unported
- License.
-
- http://creativecommons.org/licenses/by/3.0/legalcode
-
-==========================================
-Add project_id attribute to group response
-==========================================
-https://blueprints.launchpad.net/cinder/+spec/add-project-id-to-group-response
-
-This blueprint proposes to add ``project_id`` attribute to
-the response body of list groups with detail and show group detail APIs.
-
-Problem Description
-===================
-
-Currently, the group show response doesn't include project_id.
-It is an important parameter while differentiating between multiple groups
-in horizon.
-
-Use Cases
-=========
-
-As horizon is adding a tab for group listing with detail in the admin panel[1],
-it requires project_id as a response parameter from the groups API.
-It is similar to what is implemented in volumes and snapshots list.
-
-Proposed change
-===============
-
-This spec proposes to add ``project_id`` attribute to the
-response body of list groups with detail and show group detail APIs.
-
-Add a new microverion API to add ``project_id`` attribute
-to the response body of list groups with detail and show group detail APIs:
-
-- List groups with detail GET /v3/{project_id}/groups/detail
-
-- Show group detail GET /v3/{project_id}/groups/{group_id}
-
-Alternatives
-------------
-
-None
-
-REST API impact
----------------
-
-Add a new microversion in Cinder API.
-
-* List groups with detail::
-
-    GET /v3/{project_id}/groups/detail
-    Response BODY:
-    {
-        "groups": [{
-            ...
-            "project_id": "7ccf4863071f44aeb8f141f65780c51b"
-        }]
-    }
-
-* Show group detail::
-
-    GET /v3/{project_id}/groups/{group_id}
-    Response BODY:
-    {
-        "groups": [{
-            ...
-            "project_id": "7ccf4863071f44aeb8f141f65780c51b"
-        }]
-    }
-
-Calling this method shows ``project_id`` for a group.
-It is intended for admins to use, which is used to display the project_id to which
-the group belongs, and controlled by ``GROUP_ATTRIBUTES_POLICY``.
-
-Data model impact
------------------
-
-None
-
-Security impact
----------------
-
-None
-
-Notifications impact
---------------------
-
-None
-
-Other end user impact
----------------------
-
-None
-
-Performance Impact
-------------------
-
-None
-
-Other deployer impact
----------------------
-
-None
-
-Developer impact
-----------------
-
-None
-
-Implementation
-==============
-
-Assignee(s)
------------
-
-Primary assignee:
-  Rajat Dhasmana <rajatdhasmana@gmail.com>
-
-Work Items
-----------
-
-* Add a new microversion.
-* Add ``project_id`` to the response body of list groups
-  with detail and show group detail APIs.
-* Add the related unit tests.
-* Update related list groups with detail and show group detail api doc.
-
-Dependencies
-============
-
-None
-
-Testing
-=======
-
-* Unit-tests, tempest and other related test should be implemented
-
-Documentation Impact
-====================
-
-None
-
-References
-==========
-
-[1] https://review.openstack.org/#/c/624599/