Screen and nothing working

@kdhineshka22226 it sounds like you are saying that your Power LED is not showing that power gets to the TV. If that is so, then check your power outlet, your power cable and make sure it is plugged in. If it is, the the issue is most likely with your power board. For that you will have to remove the rear cover from your TV. Unplug it, remove the cover and check the board. There should be a fuse right by the power cord connector. Check that fuse for continuity.

After that, take a couple of good pictures of all of your boards and post those with your Question. That way we can see what you see and hopefully help you to fix your TV. Also, let us know the exact model of your Toshiba TV.

Adding images to an existing question