Indian Postal Department — Postman denying to deliver all incoming posts

The Jurisdictional sub post office incharge has suspended delivery of all incoming posts to an Indian Citizen on the ground that some sales tax recovery is pending against that indian citizen and a complaint for non payment of sales tax is registered against him. Can essential and fundamental Human right to receive and send post be suspended in such a way??? is there any case law in favour or against this?? arent even hard core criminals lodged in central jails also given access to this service of receipt and dispatch of posts???? pls help with case laws or other literature to help this citizen...