Hello @Ayushi Bhandari ,
Welcome to Microsoft Q&A platform.
Unfortunately, we don’t support Apache Atlas on HDInsight cluster.
Reference: Apache components and versions available for Azure HDInsight
I would suggest you to vote up an idea submitted by another Azure customer.
https://feedback.azure.com/forums/217335-hdinsight/suggestions/35030659-apache-atlas
All of the feedback you share in these forums will be monitored and reviewed by the Microsoft engineering teams responsible for building Azure.
Hope this helps. Do let us know if you any further queries.
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Do click on "Accept Answer" and Upvote on the post that helps you, this can be beneficial to other community members.