@rajapandi Unfortunately, our Vue SDK is still in beta and does not support the data attribute that is supported in our React SDK. It is hard to give an estimate on delivery of this feature, but our Vue SDK is actively being worked on at the moment and this is something on our roadmap. In the meantime, as my colleague called out in this post: How to pass data/value from vue.js to builderio?
If you need this in the short term you should be able to use a combination of our our Web Components API and the Vue Web Component Wrapper to potentially accomplish this? Take a look and let us know if that helps!