What is sky fruit called in Tamil?

There is no specific fruit called "sky fruit" in Tamil or any other language. It seems like you are referring to a fictional or fantastical fruit.

If you can provide more details about the fruit you're thinking of, I might be able to help you find its Tamil name. For example, you could tell me:

* What does it look like?

* Where does it grow?

* What does it taste like?

* What are its special properties?

With more information, I can try to find a suitable translation or a similar fruit in Tamil culture.