diff --git a/include/mme-app/structs.h b/include/mme-app/structs.h
new file mode 100644
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+++ b/include/mme-app/structs.h
@@ -0,0 +1,182 @@
+/*
+ * Copyright (c) 2019, Infosys Ltd.
+ *
+ * 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.
+ */
+
+#ifndef STRUCTS_H_
+#define STRUCTS_H_
+
+#include <iostream>
+#include "msgType.h"
+#include "s1ap_structs.h"
+#include "ue_table.h"
+#include "s11_structs.h"
+#include <utils/mmeProcedureTypes.h>
+
+
+class Tai
+{
+	public:
+		Tai();
+		Tai( const TAI& tai_i );
+		~Tai();
+		void operator = ( const Tai& tai_i );
+	public:
+		TAI tai_m;
+};
+
+class Cgi
+{
+	public:
+		Cgi();
+		Cgi( const CGI& cgi_i );
+		~Cgi();
+		void operator = ( const Cgi& cgi_i );
+	public:
+		CGI cgi_m;
+};
+
+class Stmsi
+{
+        public:
+                Stmsi();
+                Stmsi( const STMSI& stmsi_i );
+                ~Stmsi();
+                void operator = ( const Stmsi& stmsi_i );
+        public:
+                STMSI stmsi_m;
+};
+
+
+class Arp
+{
+        public:
+                Arp();
+                Arp( const ARP& arp_i );
+                ~Arp();
+                void operator = ( const Arp& arp_i );
+        public:
+                ARP arp_m;
+};
+
+class Ms_net_capab
+{
+	public:
+		Ms_net_capab();
+		Ms_net_capab( const MS_net_capab& ms_net_capb_i );
+		~Ms_net_capab();
+		void operator = ( const Ms_net_capab& ms_net_capb_i );
+	public:
+		MS_net_capab ms_net_capab_m;
+};
+
+class Ue_net_capab
+{
+	public:
+		Ue_net_capab();
+		Ue_net_capab( const UE_net_capab& ue_net_capab_i );
+		~Ue_net_capab();
+		void operator = ( const Ue_net_capab& ue_net_capab_i );
+	public:
+		UE_net_capab ue_net_capab_m;
+};
+
+class Secinfo
+{
+	public:
+		Secinfo();
+		Secinfo( const secinfo& secinfo_i );
+		~Secinfo();
+		void operator = ( const Secinfo& secinfo_i );		
+	public:
+		secinfo secinfo_m;
+};
+
+class Ambr
+{
+	public:
+		Ambr();
+		Ambr( const AMBR& ambr_i );
+		~Ambr();
+		void operator = ( const Ambr& ambr_i );
+	public:
+		AMBR ambr_m;
+};
+
+class E_utran_sec_vector
+{
+	public:
+		E_utran_sec_vector();
+		E_utran_sec_vector( const E_UTRAN_sec_vector& secinfo_i );
+		~E_utran_sec_vector();
+		void operator = ( const E_utran_sec_vector& secinfo_i );
+		friend std::ostream& operator << ( std::ostream& os, const E_utran_sec_vector& data_i );
+	public:
+		E_UTRAN_sec_vector* AiaSecInfo_mp;
+};
+	
+class Fteid
+{
+	public:
+		Fteid();
+		Fteid( const fteid& fteid_i );
+		~Fteid();
+		void operator = ( const Fteid& fteid_i );
+	public:
+		fteid fteid_m;
+};
+
+class Paa
+{
+	public:
+		Paa();
+		Paa( const PAA& paa_i );
+		~Paa();
+		void operator = ( const Paa& paa_i );
+	public:
+		PAA paa_m;
+};
+
+class Apn_name
+{
+	public:
+		Apn_name();
+		Apn_name( const apn_name& apn_name_i );
+		~Apn_name();
+		void operator = ( const Apn_name& apn_name_i );
+	public:
+		apn_name apnname_m;
+};
+
+class DigitRegister15
+{
+	public:
+		DigitRegister15();
+		void convertToBcdArray(uint8_t* arrayOut) const;
+		void convertFromBcdArray(const uint8_t* bcdArrayIn);
+		void setImsiDigits( uint8_t* digitsArrayIn );
+		void getImsiDigits( uint8_t* digitsArrayIn ) const;	
+		bool isValid() const;
+		void operator = ( const DigitRegister15& data_i );
+		bool operator == ( const DigitRegister15& data_i )const;
+		bool operator < ( const DigitRegister15& data_i )const;
+
+		friend std::ostream& operator << ( std::ostream& os, const DigitRegister15& data_i );
+	
+	private:
+
+		uint8_t digitsArray[15];
+};
+
+#endif