Yes, it is possible to file a case in the Supreme Court through the power of attorney. You may have to file Special Leave Petition (SLP) against the decision of the high court. You will be advisable to execute a power of attorney in favour of the person concerned, specifically empowering / authorizing him to file a special leave petition in the Supreme Court in the specified matter on your behalf and giving all the related powers of signing vakalatnama, filing affidavit and signing other documents, etc.
Dr. Ashok Dhamija is a New Delhi based Supreme Court Advocate and author of law books. Read more about him by clicking here. List of his Forum Replies. List of his other articles. List of his Quora Answers. List of his YouTube Videos.