diff --git a/common/changes/office-ui-fabric-react/users-prmutn-ariaRowIndexBugfix_2018-04-11-10-40.json b/common/changes/office-ui-fabric-react/users-prmutn-ariaRowIndexBugfix_2018-04-11-10-40.json
new file mode 100644
index 00000000000000..60c6c3d01c3990
--- /dev/null
+++ b/common/changes/office-ui-fabric-react/users-prmutn-ariaRowIndexBugfix_2018-04-11-10-40.json
@@ -0,0 +1,11 @@
+{
+  "changes": [
+    {
+      "packageName": "office-ui-fabric-react",
+      "comment": "DetailsList: Starting aria-rowIndex from 1 instead of 0 as mentioned in https://www.w3.org/TR/wai-aria-1.1/#aria-rowindex",
+      "type": "patch"
+    }
+  ],
+  "packageName": "office-ui-fabric-react",
+  "email": "preetsaimutneja@gmail.com"
+}
diff --git a/packages/office-ui-fabric-react/src/components/DetailsList/DetailsRow.tsx b/packages/office-ui-fabric-react/src/components/DetailsList/DetailsRow.tsx
index 98dff9abac0390..28f5c391ed2ffb 100644
--- a/packages/office-ui-fabric-react/src/components/DetailsList/DetailsRow.tsx
+++ b/packages/office-ui-fabric-react/src/components/DetailsList/DetailsRow.tsx
@@ -252,7 +252,7 @@ export class DetailsRow extends BaseComponent<IDetailsRowProps, IDetailsRowState
         data-is-focusable={ true }
         data-selection-index={ itemIndex }
         data-item-index={ itemIndex }
-        aria-rowindex={ itemIndex }
+        aria-rowindex={ itemIndex + 1 }
         data-is-draggable={ isDraggable }
         draggable={ isDraggable }
         data-automationid='DetailsRow'