How can I restore my iPad?

These support pages outline the available methods to restore an iPad - either from a backup, or to Factory Settings:

Restore your iPhone, iPad or iPod touch from a backup – Apple Support

Restore your iPhone, iPad or iPod to factory settings – Apple Support

Restore all content to iPad from a backup - Apple Support

You’ll need access to either a PC (with iTunes installed) or a Mac (with iTunes or Finder - as appropriate for the installed version of MacOS).

Download and use iTunes for Windows – Apple Support

Update to the latest version of iTunes – Apple Support

Use of a PC or Mac computer is unavoidable. If you don’t have access to a suitable computer of your own, that of a helpful friend or family member will suffice. Alternatively, the technicians at the Genius Bar of your local Apple Store or Apple Authorised Service Provider (AASP) will be delighted to assist.

Connect your ipad to your mac or laptop.

1. Locate your iPad on your computer. When you see the option to Restore or Update, choose Restore. The Finder or iTunes will download software for your iPad. ... 
2. Wait for the process to finish. Then you can set up and use your iPad.

28mk1 wrote:

how can i restore my ipad

Restore it from what? What is the current state of your ipad.