diff --git a/api-test/src/main/java/io/mosip/testrig/apirig/testrunner/MosipTestRunner.java b/api-test/src/main/java/io/mosip/testrig/apirig/testrunner/MosipTestRunner.java
index 00fac30f4f..7b3f38482a 100644
--- a/api-test/src/main/java/io/mosip/testrig/apirig/testrunner/MosipTestRunner.java
+++ b/api-test/src/main/java/io/mosip/testrig/apirig/testrunner/MosipTestRunner.java
@@ -10,6 +10,7 @@
 import java.security.PublicKey;
 import java.security.interfaces.RSAPublicKey;
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.List;
 import java.util.Map;
 import java.util.Properties;
@@ -185,27 +186,43 @@ public static void startTestRunner() {
 			homeDir = new File(dir.getParent() + "/mosip/testNgXmlFiles");
 			LOGGER.info("ELSE :" + homeDir);
 		}
-		for (File file : homeDir.listFiles()) {
-			TestNG runner = new TestNG();
-			List<String> suitefiles = new ArrayList<>();
-
-			if (file.getName().toLowerCase().contains("auth")) {
-				if (file.getName().toLowerCase().contains("prerequisite")) {
-					BaseTestCase.setReportName("auth-prerequisite");
-				} else {
-					// if the prerequisite total skipped/failed count is greater than zero
-					if (EmailableReport.getFailedCount() > 0 || EmailableReport.getSkippedCount() > 0) {
-//						skipAll = true;
+		// List and sort the files
+		File[] files = homeDir.listFiles();
+		if (files != null) {
+			Arrays.sort(files, (f1, f2) -> {
+				// Customize the comparison based on file names
+				if (f1.getName().contains("prerequisite")) {
+					return -1; // f1 should come before f2
+				} else if (f2.getName().contains("prerequisite")) {
+					return 1; // f2 should come after f1
+				}
+				return f1.getName().compareTo(f2.getName()); // default alphabetical order
+			});
+
+			for (File file : files) {
+				TestNG runner = new TestNG();
+				List<String> suitefiles = new ArrayList<>();
+
+				if (file.getName().toLowerCase().contains("auth")) {
+					if (file.getName().toLowerCase().contains("prerequisite")) {
+						BaseTestCase.setReportName("auth-prerequisite");
+					} else {
+						// Check if prerequisite suite failed or skipped
+						if (EmailableReport.getFailedCount() > 0 || EmailableReport.getSkippedCount() > 0) {
+							// skipAll = true;
+						}
+
+						BaseTestCase.setReportName("auth");
 					}
-
-					BaseTestCase.setReportName("auth");
+					suitefiles.add(file.getAbsolutePath());
+					runner.setTestSuites(suitefiles);
+					System.getProperties().setProperty("testng.output.dir", "testng-report");
+					runner.setOutputDirectory("testng-report");
+					runner.run();
 				}
-				suitefiles.add(file.getAbsolutePath());
-				runner.setTestSuites(suitefiles);
-				System.getProperties().setProperty("testng.outpur.dir", "testng-report");
-				runner.setOutputDirectory("testng-report");
-				runner.run();
 			}
+		} else {
+			LOGGER.error("No files found in directory: " + homeDir);
 		}
 
 	}