Hi @Sonali Singh8 , welcome to Microsoft Q&A forum.
The primary key for an Azure entity consists of the combined PartitionKey and RowKey properties. The two properties form a single clustered index within the table. The clustered index sorts by the PartitionKey in ascending order and then by RowKey in ascending order. Because a table has only one index, query performance usually is related to the PartitionKey and RowKey properties.
I would suggest you to go through the below article that has detailed information about the same:
Design a scalable partitioning strategy for Azure Table storage
Please let me know if this helps or else we can discuss further.
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