I am not able to type or search Names in my contact list

Hello SUMIT2917,

Welcome to Apple Support Communities. It looks like you're unable to type or search names in the Contacts app on your iPhone, and we'd be happy to help.

Which iPhone model, iOS version are you using? Settings > General > About.

To get started, let's rule out simple solutions. Have you tried restarting the device normally?

Restart your iPhone  

Next, let's make sure the device is up-to-date on software. When you navigate to: Settings > General > Software Update do you see any available updates?

If so, please back up your iPhone, then update as explained in the following links:

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

Update your iPhone, iPad, or iPod touch

We hope this information is useful. Kind regards.