Hello, Sanjay.
Welcome to Microsoft's Community. We are more than happy to assist you.
As we understand, you want to know if your Azure Data Fundamentals is still valid.
Based on the Certification expiration policy, Microsoft fundamentals and other Certifications like MOS, MTA, MCSA, MCSD, MCSE, and MCE do not expire. Therefore, they do not need to be renewed. However, it is always a good idea to stay updated with any changes or new certifications that might be introduced in the future.
For more useful information, we recommend you check the following page: Credential expiration policies | Microsoft Learn.
We hope this information is clear and helpful. If there is anything else that we can do for you, please do not hesitate to keep in contact with us.
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Wishing you an excellent day,