Once you find a live index, you will see something like:
Search engines like Google, Bing, and especially the Wayback Machine (archive.org) have cached these "Index of" pages. Even if the original server is offline, the directory structure might be preserved in search caches. index of up 2009 upd
An exposed "Index of" page can be a goldmine for: Once you find a live index, you will
: For the 2009-10 fiscal year, UP's GDP at constant prices was approximately ₹3.63 trillion . Once you find a live index
This is the most ambiguous part. It most likely stands for:
Example of what an "Index of" page looks like: