diff --git a/src/gtpV2Codec/msgClasses/downlinkDataNotificationMsg.h b/src/gtpV2Codec/msgClasses/downlinkDataNotificationMsg.h
new file mode 100644
index 0000000..d49f58e
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+++ b/src/gtpV2Codec/msgClasses/downlinkDataNotificationMsg.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2019-present, Infosys Limited.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+ /******************************************************************************
+ *
+ * This is an auto generated file.
+ * Please do not edit this file.
+ * All edits to be made through template source file
+ * <TOP-DIR/scripts/GtpV2StackCodeGen/tts/msgtemplate.h.tt>
+ ******************************************************************************/
+#ifndef DOWNLINKDATANOTIFICATIONMSG_H_
+#define DOWNLINKDATANOTIFICATIONMSG_H_
+
+#include <set>
+#include "manual/gtpV2Message.h"
+#include <msgBuffer.h>
+#include <debug.h>
+#include "gtpV2MsgDataTypes.h"
+
+
+class DownlinkDataNotificationMsg:public GtpV2Message
+{
+public:
+    DownlinkDataNotificationMsg();
+    virtual ~DownlinkDataNotificationMsg();
+    bool encodeDownlinkDataNotificationMsg(MsgBuffer &buffer, DownlinkDataNotificationMsgData const &data);
+
+    bool decodeDownlinkDataNotificationMsg (MsgBuffer &buffer, DownlinkDataNotificationMsgData& data, Uint16 length);
+
+    void displayDownlinkDataNotificationMsgData_v(DownlinkDataNotificationMsgData const &data, Debug &stream);
+
+private:
+    set <Uint16> mandatoryIeSet;
+};
+
+#endif
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