diff --git a/dev-infrastructure/configurations/svc-cluster.tmpl.bicepparam b/dev-infrastructure/configurations/svc-cluster.tmpl.bicepparam
index 747535c8a9..20f37500b5 100644
--- a/dev-infrastructure/configurations/svc-cluster.tmpl.bicepparam
+++ b/dev-infrastructure/configurations/svc-cluster.tmpl.bicepparam
@@ -1,7 +1,7 @@
 using '../templates/svc-cluster.bicep'
 
 param kubernetesVersion = '{{ .kubernetesVersion }}'
-param istioVersion = ['{{ .svc.istio.versions }}']
+param istioVersion = {{ .svc.istio.versions }}
 param vnetAddressPrefix = '{{ .vnetAddressPrefix }}'
 param subnetPrefix = '{{ .subnetPrefix }}'
 param podSubnetPrefix = '{{ .podSubnetPrefix }}'
diff --git a/dev-infrastructure/scripts/istio.sh b/dev-infrastructure/scripts/istio.sh
index 1db52c67c8..f3280604e1 100755
--- a/dev-infrastructure/scripts/istio.sh
+++ b/dev-infrastructure/scripts/istio.sh
@@ -63,7 +63,7 @@ echo "********** ISTIO Upgrade **************"
 # Followed this guide for istio upgrade https://learn.microsoft.com/en-us/azure/aks/istio-upgrade
 # To upgrade or rollback, change the targetVersion to the desire version, and version to the current version.
 if [[ -z "$TARGET_VERSION" ]]; then
-    echo "Istio is using Target Version. Exiting script."
+    echo "Target version is not set, Please set the target version"
     exit 1
 fi
 
@@ -71,8 +71,8 @@ NEWVERSION="$TARGET_VERSION"
 echo "********** Istio Upgrade Started with version ${NEWVERSION} **************"
 
 istioctl tag set "$TAG" --revision "${NEWVERSION}" --istioNamespace ${ISTIO_NAMESPACE} --overwrite
-
 for namespace in $(kubectl get namespaces --selector=istio.io/rev="$TAG" -o jsonpath='{.items[*].metadata.name}'); do
+    echo "in namespace $namespace"
     pods="$(kubectl get pods --namespace "${namespace}" -o json)"
     for pod in $(jq <<<"${pods}" --raw-output --arg NEWVERSION "${NEWVERSION}" '.items[] | select(.metadata.annotations["sidecar.istio.io/status"] | fromjson.revision != $NEWVERSION) | .metadata.name'); do
         owner_kind=$(jq <<<"${pods}" --raw-output --arg NAME "${pod}" '.items[] | select(.metadata.name == $NAME) | .metadata.ownerReferences[0].kind')
@@ -81,13 +81,16 @@ for namespace in $(kubectl get namespaces --selector=istio.io/rev="$TAG" -o json
                 "ReplicaSet")
                     deployment=$(kubectl get replicaset "$owner_name" -n "$namespace" -o jsonpath='{.metadata.ownerReferences[0].name}')
                     if [[ -n "$deployment" ]]; then
+                        echo "in ReplicaSet restart deployment $deployment"
                         kubectl rollout restart deployment "$deployment" -n "$namespace"
                         continue 2
                     else
+                        echo "in ReplicaSet delete pod $pod"
                         kubectl delete pod "$pod" -n "$namespace"
                     fi
                 ;;
                 "StatefulSet")
+                    echo "in StatefulSet restart deployment $deployment"
                     deployment=$(kubectl get replicaset "$owner_name" -n "$namespace" -o jsonpath='{.metadata.ownerReferences[0].name}')
                     kubectl rollout restart deployment "$deployment" -n "$namespace"
                     continue 2