diff --git a/tools/integration_tests/managed_folders/admin_permissions_test.go b/tools/integration_tests/managed_folders/admin_permissions_test.go
index 93cc21314e..bec60fb259 100644
--- a/tools/integration_tests/managed_folders/admin_permissions_test.go
+++ b/tools/integration_tests/managed_folders/admin_permissions_test.go
@@ -60,8 +60,8 @@ func (s *managedFoldersAdminPermission) Setup(t *testing.T) {
 	if s.managedFoldersPermission != "nil" {
 		providePermissionToManagedFolder(bucket, path.Join(testDir, ManagedFolder1), serviceAccount, s.managedFoldersPermission, t)
 		providePermissionToManagedFolder(bucket, path.Join(testDir, ManagedFolder2), serviceAccount, s.managedFoldersPermission, t)
-		// Waiting for 20 seconds for policy changes to propagate. This values we kept based on our experiments.
-		time.Sleep(20 * time.Second)
+		// Waiting for 60 seconds for policy changes to propagate. This values we kept based on our experiments.
+		time.Sleep(60 * time.Second)
 	}
 }
 
diff --git a/tools/integration_tests/managed_folders/view_permissions_test.go b/tools/integration_tests/managed_folders/view_permissions_test.go
index 94159c4c50..51e1dc7251 100644
--- a/tools/integration_tests/managed_folders/view_permissions_test.go
+++ b/tools/integration_tests/managed_folders/view_permissions_test.go
@@ -23,6 +23,7 @@ import (
 	"os"
 	"path"
 	"testing"
+	"time"
 
 	"github.com/googlecloudplatform/gcsfuse/v2/tools/integration_tests/util/creds_tests"
 	"github.com/googlecloudplatform/gcsfuse/v2/tools/integration_tests/util/operations"
@@ -62,7 +63,7 @@ func (s *managedFoldersViewPermission) TestCreateObjectInManagedFolder(t *testin
 		t.Errorf("Error in creating file locally.")
 	}
 	t.Cleanup(func() {
-		err := file.Close()
+		err = file.Close()
 		operations.CheckErrorForReadOnlyFileSystem(err, t)
 	})
 }
@@ -161,6 +162,8 @@ func TestManagedFolders_FolderViewPermission(t *testing.T) {
 	// Provide storage.objectViewer role to managed folders.
 	providePermissionToManagedFolder(bucket, path.Join(testDir, ManagedFolder1), serviceAccount, IAMRoleForViewPermission, t)
 	providePermissionToManagedFolder(bucket, path.Join(testDir, ManagedFolder2), serviceAccount, IAMRoleForViewPermission, t)
+	// Waiting for 60 seconds for policy changes to propagate. This values we kept based on our experiments.
+	time.Sleep(60 * time.Second)
 
 	log.Printf("Running tests with flags and managed folder have view permissions: %s", flags)
 	test_setup.RunTests(t, ts)
diff --git a/tools/integration_tests/run_e2e_tests.sh b/tools/integration_tests/run_e2e_tests.sh
index 69550b8ecc..7602b6956d 100755
--- a/tools/integration_tests/run_e2e_tests.sh
+++ b/tools/integration_tests/run_e2e_tests.sh
@@ -31,7 +31,7 @@ RUN_TEST_ON_TPC_ENDPOINT=false
 if [ $4 != "" ]; then
   RUN_TEST_ON_TPC_ENDPOINT=$4
 fi
-INTEGRATION_TEST_TIMEOUT_IN_MINS=70
+INTEGRATION_TEST_TIMEOUT_IN_MINS=80
 
 RUN_TESTS_WITH_PRESUBMIT_FLAG=false
 if [ $# -ge 5 ] ; then
diff --git a/tools/integration_tests/util/operations/validation_helper.go b/tools/integration_tests/util/operations/validation_helper.go
index b0f798a375..9fa2a7dce2 100644
--- a/tools/integration_tests/util/operations/validation_helper.go
+++ b/tools/integration_tests/util/operations/validation_helper.go
@@ -29,6 +29,10 @@ func ValidateNoFileOrDirError(path string, t *testing.T) {
 }
 
 func CheckErrorForReadOnlyFileSystem(err error, t *testing.T) {
+	if err == nil {
+		t.Error("permission denied error expected but got nil error.")
+		return
+	}
 	if strings.Contains(err.Error(), "read-only file system") || strings.Contains(err.Error(), "permission denied") || strings.Contains(err.Error(), "Permission denied") {
 		return
 	}