36. A careful perusal of the aforesaid judgments leads us to the conclusion that where an efficacious alternate remedy is available, the High Court should not entertain a writ petition under Article 226 of the Constitution of India in matters falling squarely within the domain of the Tribunals.

37. Nevertheless, a writ petition under Article 226 may still be maintainable notwithstanding the existence of such an alternative remedy in exceptional circumstances, including the enforcement of fundamental rights guaranteed under Part III of the Constitution; instances of ultra vires or illegal exercise of power by a statutory authority; violation of the principles of natural justice; or where the vires of the parent legislation itself is under challenge. While these exceptions have been carved out and reiterated by this Court in a catena of decisions, the facts of the present case do not fall within any of these exceptions so as to warrant the maintainability of the writ petitions before the High Court.