“101. In the operative conclusions we pronounced on November 12, 1991 we indicated in clauses (G) and (H) therein that Judicial review in the area is limited in the manner indicated. If the adjudicatory authority is a tribunal, as indeed we have held it to be, why, then, should its scope be so limited? The finality clause in Paragraph 6 does not completely exclude the jurisdiction of the courts under Articles 136, 226 and 227 of the Constitution. But it does have the effect of limiting the scope of the jurisdiction. The principle that is applied by the courts is that in spite of a finality clause it is open to the court to examine whether the action of the authority under challenge is ultra vires the powers conferred on the said authority. Such an action can be ultra vires for the reason that it is in contravention of a mandatory provision of the law conferring on the authority the power to take such an action. It will also be ultra vires the powers conferred on the authority if it is vitiated by mala fides or is colourable exercise of power based on extraneous and irrelevant considerations. While exercising their certiorari jurisdiction, the courts have applied the test whether the impugned action falls within the jurisdiction of the authority taking the action or it falls outside such jurisdiction. An ouster clause confines judicial review in respect of actions falling outside the jurisdiction of the authority taking such action but precludes challenge to such action on the ground of an error committed in the exercise of jurisdiction vested in the authority because such an action cannot be said to be an action without jurisdiction. An ouster clause attaching finality to a determination, therefore, does oust certiorari to some extent and it will be effective in ousting the power of the court to review the decision of an inferior tribunal by certiorari if the inferior tribunal has not acted without jurisdiction and has merely made an error of law which does not affect its jurisdiction and if its decision is not a nullity for some reason such as breach of rule of natural justice. [See : Administrative Law by H.W.R. Wade, (6th edn.,)
