diff --git a/utils/yangutils/src/main/java/org/onosproject/yangutils/parser/impl/listeners/InputListener.java b/utils/yangutils/src/main/java/org/onosproject/yangutils/parser/impl/listeners/InputListener.java
new file mode 100644
index 0000000..255458d
--- /dev/null
+++ b/utils/yangutils/src/main/java/org/onosproject/yangutils/parser/impl/listeners/InputListener.java
@@ -0,0 +1,127 @@
+/*
+ * 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.parser.impl.listeners;
+
+import org.onosproject.yangutils.datamodel.YangInput;
+import org.onosproject.yangutils.datamodel.YangNode;
+import org.onosproject.yangutils.datamodel.YangRpc;
+import org.onosproject.yangutils.datamodel.exceptions.DataModelException;
+import org.onosproject.yangutils.parser.Parsable;
+import org.onosproject.yangutils.parser.antlrgencode.GeneratedYangParser;
+import org.onosproject.yangutils.parser.exceptions.ParserException;
+import org.onosproject.yangutils.parser.impl.TreeWalkListener;
+
+import static org.onosproject.yangutils.datamodel.utils.GeneratedLanguage.JAVA_GENERATION;
+import static org.onosproject.yangutils.datamodel.utils.YangDataModelFactory.getYangInputNode;
+import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorLocation.ENTRY;
+import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorLocation.EXIT;
+import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorMessageConstruction.constructExtendedListenerErrorMessage;
+import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorMessageConstruction.constructListenerErrorMessage;
+import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorType.MISSING_HOLDER;
+import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorType.MISSING_CURRENT_HOLDER;
+import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorType.UNHANDLED_PARSED_DATA;
+import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorType.INVALID_HOLDER;
+import static org.onosproject.yangutils.parser.impl.parserutils.ListenerValidation.checkStackIsNotEmpty;
+import static org.onosproject.yangutils.utils.YangConstructType.INPUT_DATA;
+
+/*
+ * Reference: RFC6020 and YANG ANTLR Grammar
+ *
+ * ABNF grammar as per RFC6020
+ *
+ * input-stmt          = input-keyword optsep
+ *                       "{" stmtsep
+ *                           ;; these stmts can appear in any order
+ *                           *((typedef-stmt /
+ *                              grouping-stmt) stmtsep)
+ *                           1*(data-def-stmt stmtsep)
+ *                         "}"
+ *
+ * inputStatement : INPUT_KEYWORD LEFT_CURLY_BRACE inputStatementBody RIGHT_CURLY_BRACE;
+
+ * inputStatementBody : typedefStatement* dataDefStatement+
+ *                    | dataDefStatement+ typedefStatement*
+ *                    | groupingStatement* dataDefStatement+
+ *                    | dataDefStatement+ groupingStatement*;
+ */
+
+/**
+ * Implements listener based call back function corresponding to the "input"
+ * rule defined in ANTLR grammar file for corresponding ABNF rule in RFC 6020.
+ */
+public final class InputListener {
+
+    private static final String INPUT_KEYWORD = "Input";
+
+    /**
+     * Creates a new input listener.
+     */
+    private InputListener() {
+    }
+
+    /**
+     * It is called when parser receives an input matching the grammar rule
+     * (input), performs validation and updates the data model tree.
+     *
+     * @param listener listener's object
+     * @param ctx context object of the grammar rule
+     */
+    public static void processInputEntry(TreeWalkListener listener,
+                                       GeneratedYangParser.InputStatementContext ctx) {
+
+        // Check for stack to be non empty.
+        checkStackIsNotEmpty(listener, MISSING_HOLDER, INPUT_DATA, "", ENTRY);
+
+        Parsable curData = listener.getParsedDataStack().peek();
+        if (curData instanceof YangRpc) {
+
+            YangInput yangInput = getYangInputNode(JAVA_GENERATION);
+            yangInput.setName(((YangRpc) curData).getName() + INPUT_KEYWORD);
+            YangNode curNode = (YangNode) curData;
+            try {
+                curNode.addChild(yangInput);
+            } catch (DataModelException e) {
+                throw new ParserException(constructExtendedListenerErrorMessage(UNHANDLED_PARSED_DATA,
+                        INPUT_DATA, "", ENTRY, e.getMessage()));
+            }
+            listener.getParsedDataStack().push(yangInput);
+        } else {
+            throw new ParserException(constructListenerErrorMessage(INVALID_HOLDER, INPUT_DATA,
+                    "", ENTRY));
+        }
+    }
+
+    /**
+     * It is called when parser exits from grammar rule (input), it perform
+     * validations and updates the data model tree.
+     *
+     * @param listener listener's object
+     * @param ctx context object of the grammar rule
+     */
+    public static void processInputExit(TreeWalkListener listener,
+                                      GeneratedYangParser.InputStatementContext ctx) {
+
+        // Check for stack to be non empty.
+        checkStackIsNotEmpty(listener, MISSING_HOLDER, INPUT_DATA, "", EXIT);
+
+        if (!(listener.getParsedDataStack().peek() instanceof YangInput)) {
+            throw new ParserException(constructListenerErrorMessage(MISSING_CURRENT_HOLDER, INPUT_DATA,
+                    "", EXIT));
+        }
+        listener.getParsedDataStack().pop();
+    }
+}