diff --git a/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangSubModule.java b/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangSubModule.java
new file mode 100644
index 0000000..163599a
--- /dev/null
+++ b/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangSubModule.java
@@ -0,0 +1,490 @@
+/*
+ * Copyright 2016 Open Networking Laboratory
+ *
+ * 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.
+ */
+package org.onosproject.yangutils.datamodel;
+
+import java.util.LinkedList;
+import java.util.List;
+
+import org.onosproject.yangutils.datamodel.exceptions.DataModelException;
+import org.onosproject.yangutils.parser.Parsable;
+import org.onosproject.yangutils.parser.ParsableDataType;
+
+/*
+ *  Reference RFC 6020.
+ *
+ *  While the primary unit in YANG is a module, a YANG module can itself
+ *  be constructed out of several submodules.  Submodules allow a module
+ *  designer to split a complex model into several pieces where all the
+ *  submodules contribute to a single namespace, which is defined by the
+ *  module that includes the submodules.
+ *
+ *  The "submodule" statement defines the submodule's name, and groups
+ *  all statements that belong to the submodule together.  The
+ *  "submodule" statement's argument is the name of the submodule,
+ *  followed by a block of sub-statements that hold detailed submodule
+ *  information.
+ *
+ *  The submodule's sub-statements
+ *
+ *                +--------------+---------+-------------+------------------+
+ *                | substatement | section | cardinality |data model mapping|
+ *                +--------------+---------+-------------+------------------+
+ *                | anyxml       | 7.10    | 0..n        | - not supported  |
+ *                | augment      | 7.15    | 0..n        | - child nodes    |
+ *                | belongs-to   | 7.2.2   | 1           | - YangBelongsTo  |
+ *                | choice       | 7.9     | 0..n        | - child nodes    |
+ *                | contact      | 7.1.8   | 0..1        | - string         |
+ *                | container    | 7.5     | 0..n        | - child nodes    |
+ *                | description  | 7.19.3  | 0..1        | - string         |
+ *                | deviation    | 7.18.3  | 0..n        | - TODO           |
+ *                | extension    | 7.17    | 0..n        | - TODO           |
+ *                | feature      | 7.18.1  | 0..n        | - TODO           |
+ *                | grouping     | 7.11    | 0..n        | - child nodes    |
+ *                | identity     | 7.16    | 0..n        | - TODO           |
+ *                | import       | 7.1.5   | 0..n        | - YangImport     |
+ *                | include      | 7.1.6   | 0..n        | - YangInclude    |
+ *                | leaf         | 7.6     | 0..n        | - YangLeaf       |
+ *                | leaf-list    | 7.7     | 0..n        | - YangLeafList   |
+ *                | list         | 7.8     | 0..n        | - child nodes    |
+ *                | notification | 7.14    | 0..n        | - TODO           |
+ *                | organization | 7.1.7   | 0..1        | - string         |
+ *                | reference    | 7.19.4  | 0..1        | - string         |
+ *                | revision     | 7.1.9   | 0..n        | - string         |
+ *                | rpc          | 7.13    | 0..n        | - TODO           |
+ *                | typedef      | 7.3     | 0..n        | - child nodes    |
+ *                | uses         | 7.12    | 0..n        | - child nodes    |
+ *                | YANG-version | 7.1.2   | 0..1        | - int            |
+ *                +--------------+---------+-------------+------------------+
+ */
+/**
+ * Data model node to maintain information defined in YANG sub-module.
+ */
+public class YangSubModule extends YangNode
+        implements YangLeavesHolder, YangDesc, YangReference, Parsable {
+
+    /**
+     * Name of sub module.
+     */
+    private String name;
+
+    /**
+     * Module to which it belongs to.
+     */
+    private YangBelongsTo belongsTo;
+
+    /**
+     * Reference RFC 6020.
+     *
+     * The "contact" statement provides contact information for the module. The
+     * argument is a string that is used to specify contact information for the
+     * person or persons to whom technical queries concerning this module should
+     * be sent, such as their name, postal address, telephone number, and
+     * electronic mail address.
+     */
+    private String contact;
+
+    /**
+     * Description.
+     */
+    private String description;
+
+    /**
+     * List of YANG modules imported.
+     */
+    private List<YangImport> importList;
+
+    /**
+     * List of YANG sub-modules included.
+     */
+    private List<YangInclude> includeList;
+
+    /**
+     * List of leaves at root level in the sub-module.
+     */
+    @SuppressWarnings("rawtypes")
+    private List<YangLeaf> listOfLeaf;
+
+    /**
+     * List of leaf-lists at root level in the sub-module.
+     */
+    @SuppressWarnings("rawtypes")
+    private List<YangLeafList> listOfLeafList;
+
+    /**
+     * organization owner of the sub-module.
+     */
+    private String organization;
+
+    /**
+     * reference of the sub-module.
+     */
+    private String reference;
+
+    /**
+     * revision info of the sub-module.
+     */
+    private YangRevision revision;
+
+    /**
+     * YANG version.
+     */
+    private byte version;
+
+    /**
+     * Create a sub module node.
+     */
+    public YangSubModule() {
+        super(YangNodeType.SUB_MODULE_NODE);
+    }
+
+    /* (non-Javadoc)
+     * @see org.onosproject.yangutils.datamodel.YangNode#getName()
+     */
+    @Override
+    public String getName() {
+        return name;
+    }
+
+    /* (non-Javadoc)
+     * @see org.onosproject.yangutils.datamodel.YangNode#setName(java.lang.String)
+     */
+    @Override
+    public void setName(String subModuleName) {
+        name = subModuleName;
+    }
+
+    /**
+     * Get the module info.
+     *
+     * @return the belongs to info
+     */
+    public YangBelongsTo getBelongsTo() {
+        return belongsTo;
+    }
+
+    /**
+     * Set the module info.
+     *
+     * @param belongsTo module info to set.
+     */
+    public void setBelongsTo(YangBelongsTo belongsTo) {
+        this.belongsTo = belongsTo;
+    }
+
+    /**
+     * Get the contact.
+     *
+     * @return the contact.
+     */
+    public String getContact() {
+        return contact;
+    }
+
+    /**
+     * Set the contact.
+     *
+     * @param contact the contact to set
+     */
+    public void setContact(String contact) {
+        this.contact = contact;
+    }
+
+    /**
+     * Get the description.
+     *
+     * @return the description.
+     */
+    public String getDescription() {
+        return description;
+    }
+
+    /**
+     * Set the description.
+     *
+     * @param description set the description.
+     */
+    public void setDescription(String description) {
+        this.description = description;
+    }
+
+    /**
+     * Get the list of imported modules.
+     *
+     * @return the list of imported modules.
+     */
+    public List<YangImport> getImportList() {
+        return importList;
+    }
+
+    /**
+     * prevent setting the import list from outside.
+     *
+     * @param importList the import list to set.
+     */
+    private void setImportList(List<YangImport> importList) {
+        this.importList = importList;
+    }
+
+    /**
+     * Add the imported module information to the import list.
+     *
+     * @param importedModule module being imported.
+     */
+    public void addImportedInfo(YangImport importedModule) {
+
+        if (getImportList() == null) {
+            setImportList(new LinkedList<YangImport>());
+        }
+
+        getImportList().add(importedModule);
+
+        return;
+    }
+
+    /**
+     * Get the list of included sub modules.
+     *
+     * @return the included list of sub modules.
+     */
+    public List<YangInclude> getIncludeList() {
+        return includeList;
+    }
+
+    /**
+     * Set the list of included sub modules.
+     *
+     * @param includeList the included list to set.
+     */
+    private void setIncludeList(List<YangInclude> includeList) {
+        this.includeList = includeList;
+    }
+
+    /**
+     * Add the included sub module information to the include list.
+     *
+     * @param includeModule submodule being included.
+     */
+    public void addIncludedInfo(YangInclude includeModule) {
+
+        if (getIncludeList() == null) {
+            setIncludeList(new LinkedList<YangInclude>());
+        }
+
+        getIncludeList().add(includeModule);
+        return;
+    }
+
+    /**
+     * Get the list of leaves.
+     *
+     * @return the list of leaves.
+     */
+    @SuppressWarnings("rawtypes")
+    public List<YangLeaf> getListOfLeaf() {
+        return listOfLeaf;
+    }
+
+    /**
+     * Set the list of leaves.
+     *
+     * @param leafsList the list of leaf to set.
+     */
+    @SuppressWarnings("rawtypes")
+    private void setListOfLeaf(List<YangLeaf> leafsList) {
+        listOfLeaf = leafsList;
+    }
+
+    /**
+     * Add a leaf.
+     *
+     * @param leaf the leaf to be added.
+     */
+    @SuppressWarnings("rawtypes")
+    public void addLeaf(YangLeaf<?> leaf) {
+        if (getListOfLeaf() == null) {
+            setListOfLeaf(new LinkedList<YangLeaf>());
+        }
+
+        getListOfLeaf().add(leaf);
+    }
+
+    /**
+     * Get the list of leaf-list.
+     *
+     * @return the list of leaf-list.
+     */
+    @SuppressWarnings("rawtypes")
+    public List<YangLeafList> getListOfLeafList() {
+        return listOfLeafList;
+    }
+
+    /**
+     * Set the list of leaf-list.
+     *
+     * @param listOfLeafList the list of leaf-list to set.
+     */
+    @SuppressWarnings("rawtypes")
+    private void setListOfLeafList(List<YangLeafList> listOfLeafList) {
+        this.listOfLeafList = listOfLeafList;
+    }
+
+    /**
+     * Add a leaf-list.
+     *
+     * @param leafList the leaf-list to be added.
+     */
+    @SuppressWarnings("rawtypes")
+    public void addLeafList(YangLeafList<?> leafList) {
+        if (getListOfLeafList() == null) {
+            setListOfLeafList(new LinkedList<YangLeafList>());
+        }
+
+        getListOfLeafList().add(leafList);
+    }
+
+    /**
+     * Get the sub-modules organization.
+     *
+     * @return the organization.
+     */
+    public String getOrganization() {
+        return organization;
+    }
+
+    /**
+     * Set the sub-modules organization.
+     *
+     * @param org the organization to set.
+     */
+    public void setOrganization(String org) {
+        organization = org;
+    }
+
+    /**
+     * Get the textual reference.
+     *
+     * @return the reference.
+     */
+    public String getReference() {
+        return reference;
+    }
+
+    /**
+     * Set the textual reference.
+     *
+     * @param reference the reference to set.
+     */
+    public void setReference(String reference) {
+        this.reference = reference;
+    }
+
+    /**
+     * Get the revision.
+     *
+     * @return the revision.
+     */
+    public YangRevision getRevision() {
+        return revision;
+    }
+
+    /**
+     * Set the revision.
+     *
+     * @param revision the revision to set.
+     */
+    public void setRevision(YangRevision revision) {
+        this.revision = revision;
+    }
+
+    /**
+     * Get the version.
+     *
+     * @return the version.
+     */
+    public byte getVersion() {
+        return version;
+    }
+
+    /**
+     * Set the version.
+     *
+     * @param version the version to set.
+     */
+    public void setVersion(byte version) {
+        this.version = version;
+    }
+
+    /**
+     * Returns the type of the parsed data.
+     *
+     * @return returns SUB_MODULE_DATA.
+     */
+    public ParsableDataType getParsableDataType() {
+        return ParsableDataType.SUB_MODULE_DATA;
+    }
+
+    /**
+     * Validate the data on entering the corresponding parse tree node.
+     *
+     * @throws DataModelException a violation of data model rules.
+     */
+    public void validateDataOnEntry() throws DataModelException {
+        // TODO auto-generated method stub, to be implemented by parser
+    }
+
+    /**
+     * Validate the data on exiting the corresponding parse tree node.
+     *
+     * @throws DataModelException a violation of data model rules.
+     */
+    public void validateDataOnExit() throws DataModelException {
+        // TODO auto-generated method stub, to be implemented by parser
+    }
+
+    /* (non-Javadoc)
+     * @see org.onosproject.yangutils.translator.CodeGenerator#generateJavaCodeEntry()
+     */
+    public void generateJavaCodeEntry() {
+        // TODO Auto-generated method stub
+
+    }
+
+    /* (non-Javadoc)
+     * @see org.onosproject.yangutils.translator.CodeGenerator#generateJavaCodeExit()
+     */
+    public void generateJavaCodeExit() {
+        // TODO Auto-generated method stub
+
+    }
+
+    /* (non-Javadoc)
+     * @see org.onosproject.yangutils.datamodel.YangNode#getPackage()
+     */
+    @Override
+    public String getPackage() {
+        // TODO Auto-generated method stub
+        return null;
+    }
+
+    /* (non-Javadoc)
+     * @see org.onosproject.yangutils.datamodel.YangNode#setPackage(java.lang.String)
+     */
+    @Override
+    public void setPackage(String pkg) {
+        // TODO Auto-generated method stub
+
+    }
+}