diff --git a/src/mme-app/mmeStates/attachStart.cpp b/src/mme-app/mmeStates/attachStart.cpp
new file mode 100644
index 0000000..3378e7f
--- /dev/null
+++ b/src/mme-app/mmeStates/attachStart.cpp
@@ -0,0 +1,60 @@
+  
+/*
+ * Copyright 2019-present Infosys Limited  
+ *   
+ * SPDX-License-Identifier: Apache-2.0    
+ */
+ 
+/**************************************
+ * attachStart.cpp
+ * This is an auto generated file.
+ * Please do not edit this file.
+ * All edits to be made through template source file
+ * <TOP-DIR/scripts/SMCodeGen/templates/stateMachineTmpls/state.cpp.tt>
+ **************************************/
+
+#include "smEnumTypes.h"
+#include "actionTable.h"
+#include "actionHandlers/actionHandlers.h"
+
+#include "mmeStates/attachStart.h"	
+#include "mmeStates/attachWfImsiValidateAction.h"
+
+using namespace mme;
+using namespace SM;
+
+/******************************************************************************
+* Constructor
+******************************************************************************/
+AttachStart::AttachStart():State(State_e::attach_start)
+{
+}
+
+/******************************************************************************
+* Destructor
+******************************************************************************/
+AttachStart::~AttachStart()
+{
+}
+
+/******************************************************************************
+* creates and returns static instance
+******************************************************************************/
+AttachStart* AttachStart::Instance()
+{
+        static AttachStart state;
+        return &state;
+}
+
+/******************************************************************************
+* initializes eventToActionsMap
+******************************************************************************/
+void AttachStart::initialize()
+{
+        {
+                ActionTable actionTable;
+                actionTable.addAction(&ActionHandlers::validate_imsi_in_ue_context);
+                actionTable.setNextState(AttachWfImsiValidateAction::Instance());
+                eventToActionsMap.insert(pair<Event_e, ActionTable>(Event_e::VALIDATE_IMSI, actionTable));
+        }
+}