diff --git a/doc/source/index.rst b/doc/source/index.rst
index 31c22fe1..c3894f49 100644
--- a/doc/source/index.rst
+++ b/doc/source/index.rst
@@ -10,6 +10,17 @@ The TOSCA Parser is developed to parse TOSCA Simple Profile in YAML. It reads
 the TOSCA templates and creates an in-memory graph of TOSCA nodes and their
 relationship.
 
+The TOSCA Parser can also be used for parsing TOSCA Simple Profile for Network
+Functions Virtualization (NFV). The work to provide such a support was started
+with the release of TOSCA Parser 0.4.0 PyPI release and it is ongoing.
+The TOSCA Simple Profile for NFV can be accessed by using TOSCA version
+"tosca_simple_profile_for_nfv_1_0_0" in the template.
+
+The TOSCA Parser now supports profile definition extensions that can be
+accessed via a custom tosca_definitions_version.  Extensions can be added by
+creating a module in the "toscaparser/extensions" directory.  See the "nfv"
+module for an example.
+
 Contents:
 
 .. toctree::