diff --git a/mifosng-db/patches/00002-client_indentifier_constraints.sql b/mifosng-db/patches/00002-client_indentifier_constraints.sql
new file mode 100755
index 000000000..cdb652f3b
--- /dev/null
+++ b/mifosng-db/patches/00002-client_indentifier_constraints.sql
@@ -0,0 +1,5 @@
+ALTER TABLE `m_client_identifier`
+	ADD UNIQUE INDEX `unique_identifier_key` (`document_type_id`, `document_key`);
+	
+ALTER TABLE `m_client_identifier`
+	ADD UNIQUE INDEX `unique_client_identifier` (`client_id`, `document_type_id`);
\ No newline at end of file