Hi @RohitKu17,
What particular functionality for AEM component are you trying to achieve through NodeJS?
The primary backend components of AEM are all Java-based - Sling Servlets, OSGi bundles, JCR for content storage.
We do use Node.js in the frontend development (Using webpack)
However that being said, you can use Node.js as an intermediary. For instance, a Node.js server could act as a proxy for AEM to make third-party API calls and process data before passing it back to AEM.
Hope this helps!