Is there a way to block incoming calls from specific phone numbers? I want to block a number from calling me. I don't even want to know if the person even tried to call me. Don't want any notifications. The person on the other end should not get a ringing sound when he try to call me. He shouldn't even know that I've blocked him. If possible I would like to block text messages from that number as well. 

The specifications of my device can be seen from the attached image:

Is there a way to do it?
You can access Xiaomi call blocker that way:


Go to Settings > System Apps > Call Settings > Blocklist.
Enable Blocklist by sliding the toggle
To block any number you want, Click on the Blocked numbers > Click on Add &amp; choose from the contacts or enter the contact you wanted to block manually.