diff --git a/Documentation/Autoloading/LegacyMode.md b/Documentation/Autoloading/LegacyMode.md
new file mode 100644
index 0000000..c5d6f65
--- /dev/null
+++ b/Documentation/Autoloading/LegacyMode.md
@@ -0,0 +1,16 @@
+* Guideline for autoloading in Typo3 Legacy Mode
+
+Following steps will use to autoload class in typo3 Legacy mode.
+
+* Step 1: Put any PHP Library or SDK in Extension's Classes directory
+* Step 2: In `ext_emconf.php` add following code in key `autoload`
+* ``'autoload' => [
+  'classmap' => ['Classes/']
+  ]``
+* Step 3: Do Typo3 dumpautoload and cache Clear
+
+***
+* Following Reference are for autoloading
+* Ref 1: https://www.youtube.com/watch?v=p_Ll2mKkz70&t=634s
+* Ref 2: https://docs.typo3.org/m/typo3/reference-coreapi/11.5/en-us/ApiOverview/Autoloading/Index.html
+* Ref 3 : https://docs.typo3.org/m/typo3/reference-coreapi/11.5/en-us/ExtensionArchitecture/FileStructure/ExtEmconf.html#extension-declaration
diff --git a/README.md b/README.md
index 5889604..dc6cf08 100644
--- a/README.md
+++ b/README.md
@@ -3,3 +3,5 @@
 
 1. `ddev start`
 2. `touch .Build/public/FIRST_INSTALL`
+
+* [Documentation of Legacy mode Autoloading](Documentation/Autoloading/LegacyMode.md)