Hello Raguram,
If you use the free version, there is a wizard for you to complete for ingesting blobs:
You need to provide a storage url.
But this is a one-time ingestion solution.
The free version only offers 'streaming' ingest using an EventHub.
if you are using the paid Azure Data Explorer cluster, check out the database data connection for Blob storage files.
Here is an example of how to set this up.
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