Index of Grav?

Well, I’ve been trying to install Grav in my website, with BlueHost, but I couldn’t. It requires me the index of grav. Which is it? index.php?

I’m not sure I follow what your asking for. There is no ‘installation’ per say, you just extract the Grav zip package into your webroot, or subdirectory. Please read the docs for more detailed installation instructions.