TSO YOUR SAYING THAT IS NOT POSSIBLE TO CREATE AN INDEX WHICH VALUE IS CHANGE DAILY.
It would actually change every second as CURRENT_DATE includes the time as well.
How do you expect that to work? That Oracle automagically re-creates the index each time the expression changes? With your example, Oracle would need to re-create the entire index every second to recalculate the expression....
And please do not write in all upper-case. That is consider rude (shouting).