diff --git a/index_installation.rst b/index_installation.rst
new file mode 100644
index 0000000000000000000000000000000000000000..bee633f888f947305bf7ca9ae727d529c79d13e3
--- /dev/null
+++ b/index_installation.rst
@@ -0,0 +1,8 @@
+Installation 
+===========
+
+.. toctree::
+   :maxdepth: 2
+
+   doc_module_gtf/installation/linux/index.rst
+   doc_module_gtf/installation/windows/index.rst
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