If the decision was taken by a Single Judge of the High Court, as it appears from your question, you may have the option of challenging the same before the division bench of the high court, provided the rules of your High Court allow it. So, check the relevant rules of your high court in this regard.
You have already tried the review petition also. Both times, as per facts in your question, it was not heard on facts. While I am aware of detailed facts of your case, it appears that the high court has left the decision to the concerned authority, without deciding on merits, as you have mentioned. It is up to the court concerned to take a call, in the given situation. If you are not satisfied with its decision, you can challenge such decision in accordance with law. If the high court has asked the departmental authority to take decision in your case, then you may approach the departmental authority for the same.
Your last two questions are already covered in the first para of my reply. If your high court rules permit, you can approach the division bench. Otherwise, you can challenge before the Supreme Court.
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.