diff --git a/documentation/ingestion_server/guides/upgrade.md b/documentation/ingestion_server/guides/upgrade.md
index 467019a1c01..08e7711ed0a 100644
--- a/documentation/ingestion_server/guides/upgrade.md
+++ b/documentation/ingestion_server/guides/upgrade.md
@@ -57,7 +57,9 @@ differences.
 
    - If the staging API reports errors, immediately switch back the aliases to
      the old indices.
-   - If the staging API works, delete the old indices to recover the free space.
+   - If the staging API works,
+     [delete the old indices](/ingestion_server/reference/task_api.md#delete_index)
+     to recover the free space.
 
 ### Production deployment
 
@@ -102,8 +104,9 @@ differences.
 
    - If the production API reports errors, immediately switch back the aliases
      to the old indices.
-   - If the production API works, delete the old indices to recover the free
-     space.
+   - If the production API works,
+     [delete the old indices](/ingestion_server/reference/task_api.md#delete_index)
+     to recover the free space.
 
 ## Rollback
 
diff --git a/documentation/ingestion_server/reference/task_api.md b/documentation/ingestion_server/reference/task_api.md
index f69d53bdab4..b2e23b3526f 100644
--- a/documentation/ingestion_server/reference/task_api.md
+++ b/documentation/ingestion_server/reference/task_api.md
@@ -63,7 +63,7 @@ suffix.
 $ curl \
   -X POST \
   -H 'Content-Type: application/json' \
-  -d '{"model": "image", "action": "CREATE_AND_POPULATE_FILTERED_INDEX", "destination_index_suffix": "kw"}' \
+  -d '{"model": "image", "action": "CREATE_AND_POPULATE_FILTERED_INDEX", "destination_index_suffix": "20231106"}' \
   http://localhost:8001/task
 ```
 
@@ -93,3 +93,33 @@ $ curl \
   -d '{"model": "image", "action": "POINT_ALIAS", "index_suffix": "20231106", "alias": "image-filtered"}' \
   http://localhost:8001/task
 ```
+
+## DELETE_INDEX
+
+This endpoint deletes the given index for a given media type.
+
+```{danger}
+Index deletion is an irreversible destructive operation. Please ensure that you
+do not delete an index that is currently in use as the default or filtered index
+for a media type.
+```
+
+### Body
+
+```typescript
+{
+  model: "image" | "audio"
+  action: "DELETE_INDEX"
+  index_suffix: string
+}
+```
+
+### Example
+
+```console
+$ curl \
+  -X POST \
+  -H 'Content-Type: application/json' \
+  -d '{"model": "image", "action": "DELETE_INDEX", "index_suffix": "20231106"}' \
+  http://localhost:8001/task
+```