I have contact lists on icloud. However these are not showing on iphone mail app!

Hey there AnilBagga,

We'd like to help, but we'll need more details to better understand what's happening:

1. We see you're using an iPhone 11 with iOS 14 installed, but the latest version is iOS 14.3. You can verify which version number is installed within Settings > General > About. Here's a link that'll show how to first back up, then Update your iPhone, iPad, or iPod touch.
2. We're not quite understanding what you meant by lists aren't showing. What exactly did you mean by this? The more details you provide, the better equipped we'll all be to help.
3. You mentioned there names within 'lists' aren't showing within Mail, but they do show when checking your Outlook account. Please confirm if you meant the lists you're referring to are showing without any issues when checking on the Outlook website.
4. Has a restart been tried? If not, this link shows how to Restart your iPhone.

We look forward to hearing what about these details, and take care.