Hi @Lodha, Nimisha M,
You can use Microsoft Connector for Oracle. It is a replacement for Attunity.
Check it out here: https://learn.microsoft.com/en-us/sql/integration-services/data-flow/oracle-connector?view=sql-server-ver16
Behind the scenes, Microsoft is using Progress DataDirect Oracle Wire Protocol ODBC driver. One of the best on the market.