@jmazzitelli, Thank you very much for your answer. If we understand you correctly, I should install istio in deafult mode in the cluster and then install kiali, grafana, jaeger in seperate m/c and connect both of these m/c. Please correct if this is wrong understanding.
By the way, to join slack, I filled up the form on 7th May but still not added.I followed the suggestion from [geeknoid] given in the link Profile - geeknoid - Discuss Istio)Istio Slack Channel. Do I need to do anything else to join slack?
Thanks in advance.