How to connect screen mirroring in sony tv?

It really depends on your TV model. For newer Sony TVs with Google TV, it's quite easy. Just make sure your phone and the TV are on the same Wi-Fi network. Then, on your phone, pull down the quick settings menu and find the "Cast" or "Screen Share" icon. Your TV should show up in the list.

For slightly older models, you might have to press the [INPUT] button on your remote first. Then, select the "Screen mirroring" option from the list. After that, you can connect from your device. Hope that sorts it out for you