Hi Vikas Mehta,
A service in Kubernetes cluster provides a stable network endpoint for accessing those pods. Deleting a Service does not affect the lifecycle of the pod as pods are managed by controllers like Deployments or ReplicaSets. The Controllers will recreate the pods to maintain the desired number of replicas.
Try deleting replica set, if it is running. You can try removing all the pods in a ReplicaSet without deleting the ReplicaSet ensuring no pods are running or try deleting replicaset.
kubectl scale replicaset <replicaset-name> --replicas=0
kubectl delete replicaset <your_replica_controller_name>
Check if a Deployment is managing the ReplicaSet, if pods are still being recreated. To overcome this, scale down or delete the Deployment:
kubectl scale deployment <deployment-name> --replicas=0
kubectl delete deployment <deployment-name>
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