Hello @anup-kantode,
First of all thank you very much for using the pro version of the theme.
To help you set your site as in the demo, we do have the themes official documentation which you can refer to set the site.
Documentation link:
http://themepalace.com/instructions/themes/restaurantz-pro/
If you find any confusion while setting up the site please write back to us and we will help you further.
Best Regards!!
Have a good day 🙂 .