[quote="arunachala, post:3, topic:156047"]
Assuming ES version 6.1.2, is there an API (or any other method) from which I can get this mapping of indices UUIDs to archived indices for a given snapshot?
[/quote]

There is no API for this. Perhaps the source helps?

https://github.com/elastic/elasticsearch/blob/v6.1.2/core/src/main/java/org/elasticsearch/repositories/blobstore/BlobStoreRepository.java#L133-L164

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