Hi @Md Tahseen Anam​ I don't think there is a possibility to use an init script for cust tags. But the easiest way is to use cluster policies. You can mention a list of custom tags in the policy so that you can simply add the policy to the cluster while creating. Other than the tags, you can set the DBR version, spark configs, etc using the cluster policy.

https://docs.databricks.com/administration-guide/clusters/policies.html#unlimited-policy