Q: My iPad is not able to get restore, it was in Disabled mode but after downloading the latest version of the software it is not showing the things, everytime it comes as error-3194. So, please replace my this product.

You are not addressing Apple here, this is a user to user support forum, and Apple does not participate, so telling someone to replace your device is not practical.

The 3194 error is for someone attempting to put the wrong iOS on a device. See this support document. If you see Error 3194, Error 17, or 'This device isn't eligible for the requested build' in iTunes - Apple Support

You may need to put the device into Recovery Mode to restore.  See this support document for that. If you can't update or restore your iPhone, iPad, or iPod touch - Apple Support

Make an appointment at the Genius Bar of the nearest Apple Store or authorized Apple service provider to have the device examined. You can also call Apple Support to see about sending the device in. Once that is done, they will advise you of the problem and provide you with you service options/cost. However, replacement may not be necessary if you troubleshoot the device and can get it working again yourself.

Read the instructions in the support documents that I provided you the links to.