Update request meaning?

Hello shubhamjoshi,

Welcome to Apple Support Communities. We understand having issues updating your iPad. Being able to update your iPad is super important, and we’d like to look into this with you. Have you tried to restart your iPad, and try again?

Restart your iPad

If you’re experiencing issues when attempting to update your iPad, you’ll find recommended troubleshooting steps you can attempt for when facing issues updating via your Settings menu here:

If your iPhone, iPad or iPod touch won’t update

If you continue to experience issues, we recommend that you use a computer to update your iPhone. Just in case, the following article can help you:

Update your iPhone, iPad, or iPod touch

Under: "Update your device using your computer"

Remember to create a backup of your data prior to attempting any software update. The following articles can guide you: 

How to back up your iPhone, iPad, and iPod touch

We hope this information is useful. Kind regards.