योग्य निकाल देण्यासाठी न्यायमंडळानी _______ चा अवलंब करणे आवश्यक असते.

The correct answer is Option C (Principles of Natural Justice).

Key Points:
• Procedural Flexibility & Principles of Natural Justice in Tribunals:
• Administrative Tribunals (such as CAT, SAT, NGT) are established under Articles 323A and 323B.
• Unlike traditional courts, tribunals are expressly not bound by the strict, technical procedural rules of the Code of Civil Procedure (CPC), 1908 or the Indian Evidence Act, 1872.
• Instead, the governing statutes explicitly mandate that tribunals shall be guided by the Principles of Natural Justice (नैसर्गिक न्यायाची तत्त्वे) in deciding disputes and ensuring fairness of verdicts.
• Both openness and impartiality are sub-elements embodied within the overarching framework of Natural Justice (*Nemo Judex In Causa Sua* and *Audi Alteram Partem*).
• Hence, Principles of Natural Justice is the primary legal requirement.
• Key Takeaway: Tribunals are guided by the Principles of Natural Justice rather than technical CPC rules to ensure fair decisions.