Wordpress is just a plugin. you should contact your hosting provider to help you. We help our customers in installation also.
You do not need to install anything. WordPress works through the control panel, which you get through the site.
Simply log in to your hosting account then on c-panel dashboard click on install Wordpress icon this will take you to a place where you will see an overview & install button of Wordpress or you can just tell your hosting service provider to do this job for you. To install Wordpress you need a Wordpress hosting. For best Wordpress hosting contact- www.hostnetindia.com
To install from cPanel softaculous - https://manage.accuwebhosting.com/knowledgebase/2101/How-to-Install-WordPress-Through-Softaculous.html