As per case facts, an Assistant Executive Engineer in GREF was denied financial upgradation and approached the Central Administrative Tribunal (CAT). The CAT initially held it had jurisdiction, but the ... High Court overturned this, questioning both CAT and Armed Forces Tribunal (AFT) jurisdiction due to GREF's status as part of the Armed Forces. The question arose whether GREF members' service matters fall under the CAT, AFT, or the High Court's writ jurisdiction, considering their unique dual disciplinary control. Finally, the Supreme Court ruled that the CAT lacks inherent jurisdiction for GREF service matters. It clarified that while the AFT handles court-martial appeals, it doesn't cover general service conditions or departmental disciplinary actions under civilian rules. Thus, the High Court under Article 226 is the proper forum for such grievances.