17. . Judicial review, as is well known, lies against the decision making process and not the merits of the decision itself. If the decision - making process is flawed inter alia by violation of the basic principles of natural justice, is ultra - vires the powers of the decision maker, takes into consideration irrelevant materials or excludes relevant materials, admits materials behind the back of the person to be affected or is such that no reasonable person would have taken such a decision in the circumstances, the court may step in to correct the error by setting aside such decision and requiring the decision maker to take a fresh decision in accordance with the law. The court, in the garb of judicial review, cannot usurp the jurisdiction of the decision maker and make the decision itself. Neither can it act as an appellate authority of the TFARC. In Fertilizer Corporation Kamgar Union (Regd.), Sindri v Union of India , 1981 (1) SCC 568, it was observed:"35 We certainly agree that judicial interference with the administration cannot be meticulous in our Montesquien system of separation of powers. The court cannot usurp or abdicate, and the parameters of judicial review must be clearly defined and never exceeded. If the directorate of a