diff --git a/src/main/java/org/onosproject/segmentrouting/grouphandler/PolicyGroupIdentifier.java b/src/main/java/org/onosproject/segmentrouting/grouphandler/PolicyGroupIdentifier.java
new file mode 100644
index 0000000..44a0a2c
--- /dev/null
+++ b/src/main/java/org/onosproject/segmentrouting/grouphandler/PolicyGroupIdentifier.java
@@ -0,0 +1,90 @@
+/*
+ * Copyright 2015 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.segmentrouting.grouphandler;
+
+import java.util.List;
+
+/**
+ * Representation of policy based group identifiers.
+ * Opaque to group handler applications and only the outermost
+ * policy group identifier in a chain is visible to the applications.
+ */
+public class PolicyGroupIdentifier {
+    private String id;
+    private List<PolicyGroupParams> inputParams;
+    private List<GroupBucketIdentifier> bucketIds;
+
+    /**
+     * Constructor.
+     *
+     * @param id unique identifier associated with the policy group
+     * @param input policy group params associated with this group
+     * @param bucketIds buckets associated with this group
+     */
+    protected PolicyGroupIdentifier(String id,
+                                 List<PolicyGroupParams> input,
+                                 List<GroupBucketIdentifier> bucketIds) {
+        this.id = id;
+        this.inputParams = input;
+        this.bucketIds = bucketIds;
+    }
+
+    /**
+     * Returns the bucket identifier list associated with the policy
+     * group identifier.
+     *
+     * @return list of bucket identifier
+     */
+    protected List<GroupBucketIdentifier> bucketIds() {
+        return this.bucketIds;
+    }
+
+    @Override
+    public int hashCode() {
+        int result = 17;
+        int combinedHash = 0;
+        for (PolicyGroupParams input:inputParams) {
+            combinedHash = combinedHash + input.hashCode();
+        }
+        for (GroupBucketIdentifier bucketId:bucketIds) {
+            combinedHash = combinedHash + bucketId.hashCode();
+        }
+        result = 31 * result + combinedHash;
+
+        return result;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+
+        if (obj instanceof PolicyGroupIdentifier) {
+            PolicyGroupIdentifier that = (PolicyGroupIdentifier) obj;
+            boolean result = this.id.equals(that.id);
+            result = result &&
+                    this.inputParams.containsAll(that.inputParams) &&
+                    that.inputParams.containsAll(this.inputParams);
+            result = result &&
+                    this.bucketIds.containsAll(that.bucketIds) &&
+                    that.bucketIds.containsAll(this.bucketIds);
+            return result;
+        }
+
+        return false;
+    }
+}