diff --git a/src/main/java/org/opensearch/securityanalytics/resthandler/RestIndexCorrelationRuleAction.java b/src/main/java/org/opensearch/securityanalytics/resthandler/RestIndexCorrelationRuleAction.java
index 83c355f33..42b5a80ad 100644
--- a/src/main/java/org/opensearch/securityanalytics/resthandler/RestIndexCorrelationRuleAction.java
+++ b/src/main/java/org/opensearch/securityanalytics/resthandler/RestIndexCorrelationRuleAction.java
@@ -42,7 +42,11 @@ public String getName() {
     @Override
     public List<Route> routes() {
         return List.of(
-            new Route(RestRequest.Method.POST, SecurityAnalyticsPlugin.CORRELATION_RULES_BASE_URI)
+            new Route(RestRequest.Method.POST, SecurityAnalyticsPlugin.CORRELATION_RULES_BASE_URI),
+            new Route(RestRequest.Method.PUT, String.format(Locale.getDefault(),
+                    "%s/{%s}",
+                    SecurityAnalyticsPlugin.CORRELATION_RULES_BASE_URI,
+                    "correlation_rule_id"))
         );
     }
 
@@ -50,7 +54,7 @@ public List<Route> routes() {
     protected RestChannelConsumer prepareRequest(RestRequest request, NodeClient client) throws IOException {
         log.debug(String.format(Locale.ROOT, "%s %s", request.method(), SecurityAnalyticsPlugin.CORRELATION_RULES_BASE_URI));
 
-        String id = request.param("rule_id", CorrelationRule.NO_ID);
+        String id = request.param("correlation_rule_id", CorrelationRule.NO_ID);
 
         XContentParser xcp = request.contentParser();
 
diff --git a/src/main/java/org/opensearch/securityanalytics/transport/TransportDeleteCorrelationRuleAction.java b/src/main/java/org/opensearch/securityanalytics/transport/TransportDeleteCorrelationRuleAction.java
index da6e5c175..1dc220944 100644
--- a/src/main/java/org/opensearch/securityanalytics/transport/TransportDeleteCorrelationRuleAction.java
+++ b/src/main/java/org/opensearch/securityanalytics/transport/TransportDeleteCorrelationRuleAction.java
@@ -56,6 +56,7 @@ protected void doExecute(Task task, DeleteCorrelationRuleRequest request, Action
         new DeleteByQueryRequestBuilder(client, DeleteByQueryAction.INSTANCE)
                 .source(CorrelationRule.CORRELATION_RULE_INDEX)
                 .filter(QueryBuilders.matchQuery("_id", correlationRuleId))
+                .refresh(true)
                 .execute(new ActionListener<>() {
                     @Override
                     public void onResponse(BulkByScrollResponse response) {
diff --git a/src/test/java/org/opensearch/securityanalytics/correlation/CorrelationEngineRuleRestApiIT.java b/src/test/java/org/opensearch/securityanalytics/correlation/CorrelationEngineRuleRestApiIT.java
index 4fa583381..2c5074717 100644
--- a/src/test/java/org/opensearch/securityanalytics/correlation/CorrelationEngineRuleRestApiIT.java
+++ b/src/test/java/org/opensearch/securityanalytics/correlation/CorrelationEngineRuleRestApiIT.java
@@ -4,6 +4,8 @@
  */
 package org.opensearch.securityanalytics.correlation;
 
+import org.apache.hc.core5.http.io.entity.StringEntity;
+import org.apache.hc.core5.http.message.BasicHeader;
 import org.junit.Assert;
 import org.opensearch.client.Response;
 import org.opensearch.client.ResponseException;
@@ -13,6 +15,7 @@
 
 import java.io.IOException;
 import java.util.Collections;
+import java.util.Map;
 
 import static org.opensearch.securityanalytics.TestHelpers.randomCorrelationRule;
 
@@ -33,4 +36,81 @@ public void testCreateCorrelationRuleWithInvalidName() {
         String actualMessage = exception.getMessage();
         Assert.assertTrue(actualMessage.contains(expectedMessage));
     }
+
+    @SuppressWarnings("unchecked")
+    public void testUpdateCorrelationRule() throws IOException {
+        CorrelationRule rule = randomCorrelationRule("custom-rule");
+        Response response = makeRequest(client(), "POST", SecurityAnalyticsPlugin.CORRELATION_RULES_BASE_URI, Collections.emptyMap(), toHttpEntity(rule));
+        Assert.assertEquals(201, response.getStatusLine().getStatusCode());
+        Map<String, Object> responseMap = responseAsMap(response);
+        Assert.assertEquals("custom-rule", ((Map<String, Object>) responseMap.get("rule")).get("name"));
+
+        String id = responseMap.get("_id").toString();
+
+        rule = randomCorrelationRule("custom-updated-rule");
+        response = makeRequest(client(), "PUT", SecurityAnalyticsPlugin.CORRELATION_RULES_BASE_URI + "/" + id, Collections.emptyMap(), toHttpEntity(rule));
+        Assert.assertEquals(200, response.getStatusLine().getStatusCode());
+        responseMap = responseAsMap(response);
+        Assert.assertEquals("custom-updated-rule", ((Map<String, Object>) responseMap.get("rule")).get("name"));
+    }
+
+    @SuppressWarnings("unchecked")
+    public void testDeleteCorrelationRule() throws IOException {
+        CorrelationRule rule = randomCorrelationRule("custom-rule");
+        Response response = makeRequest(client(), "POST", SecurityAnalyticsPlugin.CORRELATION_RULES_BASE_URI, Collections.emptyMap(), toHttpEntity(rule));
+        Assert.assertEquals(201, response.getStatusLine().getStatusCode());
+        Map<String, Object> responseMap = responseAsMap(response);
+        Assert.assertEquals("custom-rule", ((Map<String, Object>) responseMap.get("rule")).get("name"));
+        String id = responseMap.get("_id").toString();
+
+        String request = "{\n" +
+                "   \"query\" : {\n" +
+                "     \"match_all\":{\n" +
+                "     }\n" +
+                "   }\n" +
+                "}";
+        response = makeRequest(client(), "POST", SecurityAnalyticsPlugin.CORRELATION_RULES_BASE_URI + "/_search", Collections.emptyMap(), new StringEntity(request), new BasicHeader("Content-type", "application/json"));
+        responseMap = responseAsMap(response);
+        Assert.assertEquals(1, Integer.parseInt(((Map<String, Object>) ((Map<String, Object>) responseMap.get("hits")).get("total")).get("value").toString()));
+
+        response = makeRequest(client(), "DELETE", SecurityAnalyticsPlugin.CORRELATION_RULES_BASE_URI + "/" + id, Collections.emptyMap(), null);
+        Assert.assertEquals(200, response.getStatusLine().getStatusCode());
+
+        request = "{\n" +
+                "   \"query\" : {\n" +
+                "     \"match_all\":{\n" +
+                "     }\n" +
+                "   }\n" +
+                "}";
+        response = makeRequest(client(), "POST", SecurityAnalyticsPlugin.CORRELATION_RULES_BASE_URI + "/_search", Collections.emptyMap(), new StringEntity(request), new BasicHeader("Content-type", "application/json"));
+        responseMap = responseAsMap(response);
+        Assert.assertEquals(0, Integer.parseInt(((Map<String, Object>) ((Map<String, Object>) responseMap.get("hits")).get("total")).get("value").toString()));
+    }
+
+    @SuppressWarnings("unchecked")
+    public void testSearchCorrelationRule() throws IOException {
+        CorrelationRule rule = randomCorrelationRule("custom-rule");
+        Response response = makeRequest(client(), "POST", SecurityAnalyticsPlugin.CORRELATION_RULES_BASE_URI, Collections.emptyMap(), toHttpEntity(rule));
+        Assert.assertEquals(201, response.getStatusLine().getStatusCode());
+        Map<String, Object> responseMap = responseAsMap(response);
+        Assert.assertEquals("custom-rule", ((Map<String, Object>) responseMap.get("rule")).get("name"));
+
+        String request = "{\n" +
+                "  \"query\": {\n" +
+                "    \"nested\": {\n" +
+                "      \"path\": \"correlate\",\n" +
+                "      \"query\": {\n" +
+                "        \"bool\": {\n" +
+                "          \"must\": [\n" +
+                "            { \"match\": {\"correlate.category\": \"network\"}}\n" +
+                "          ]\n" +
+                "        }\n" +
+                "      }\n" +
+                "    }\n" +
+                "  }\n" +
+                "}";
+        response = makeRequest(client(), "POST", SecurityAnalyticsPlugin.CORRELATION_RULES_BASE_URI + "/_search", Collections.emptyMap(), new StringEntity(request), new BasicHeader("Content-type", "application/json"));
+        responseMap = responseAsMap(response);
+        Assert.assertEquals(1, Integer.parseInt(((Map<String, Object>) ((Map<String, Object>) responseMap.get("hits")).get("total")).get("value").toString()));
+    }
 }
\ No newline at end of file