appeal the appellate authority, being factfinding authorities have exclusive power to consider the evidence with a view to maintain discipline. They are invested with the discretion to impose appropriate punishment keeping in view the magnitude or gravity of the misconduct. The High Court/Tribunal, while exercising the power of judicial review, cannot normally substitute its own conclusion on penalty and impose some other penalty. If the punishment imposed by the disciplinary authority or the appellate authority shocks the conscience of the High Court/Tribunal, it would appropriately mould the relief, either directing the disciplinary/appellate authority to reconsider the penalty imposed, or to shorten the litigation, it may itself, in exceptional and rare cases, impose appropriate punishment with cogent reasons in support thereof." In Om Kumar v. Union of India (2001) 2 SCC 386, after considering large number of cases, the principle was summarized as under in para 71 of the reports:"71. Thus, from the above principles and decided cases, it must be held that where an administrative decision relating to punishment in disciplinary cases is questioned as "arbitrary" under Article 14, the court is confined to Wednesbury principles as a secondary reviewing authority. The court will not apply proportionality as a primary reviewing court because no issue of fundamental freedoms nor of discrimination under Article 14 applies in such a context. The court while reviewing punishment and if it is satisfied that Wednesbury principles are violated, it has normally to remit the matter to the administrator for a fresh decision as to the quantum of punishment. Only in rare cases where there has been long delay in the time taken by the disciplinary proceedings and in the time taken in the courts, and in such extreme or rare cases can the court substitute its own view as to the quantum of punishment."