Jurisprudence, Interpretation and General Laws · Administrative Laws

Principles of Natural Justice for CS Executive

Updated 11 October 2026 · Fact-checked

Natural justice is a set of basic fairness rules that every authority must follow when its decision affects someone's rights. The two core rules are nemo judex in causa sua (no one is a judge in their own cause) and audi alteram partem (hear the other side). Answer by stating the rule, applying it to the facts, then concluding.

Understand Principles of Natural Justice

Natural justice means procedural fairness. It is not written in one Act. Courts developed it to stop public authorities from deciding matters in an unfair way. It applies to judicial bodies and, today, to administrative bodies whose decisions create civil consequences for a person.

The first rule is nemo judex in causa sua, also called the rule against bias. A decision-maker must be impartial. Bias can be of three kinds. Pecuniary bias means a financial interest in the matter, however small. Personal bias arises from friendship, hostility or a relationship with a party. Official or subject-matter bias arises when the decision-maker has a fixed view or a policy stake in the matter. The test applied by courts is real likelihood of bias or reasonable suspicion of bias. The idea is that justice must not only be done but must also be seen to be done.

The second rule is audi alteram partem, the right to a fair hearing. Its parts are: proper notice of the case, with the charges and the material to be used against you; a real opportunity to present your case, including to see the evidence relied on and to cross-examine where the situation needs it; and, in suitable cases, a chance to be heard through a representative. A decision taken without these steps is open to challenge.

The third rule is that of reasoned decisions. Courts increasingly require an authority to give reasons for its order. Reasons show that the mind was applied, help the affected person to appeal, and let a court review the decision. The requirement is stronger for quasi-judicial orders. For purely administrative orders, it depends on the effect on the person.

Natural justice is not rigid. It can be excluded by clear statutory provision, and it may be relaxed in situations of real urgency, impracticability or national security, provided the law and the facts support this. The test of fairness also links to Article 14 and Article 21 of the Constitution. In Maneka Gandhi v. Union of India, the Supreme Court held that the procedure affecting personal liberty must be fair, just and reasonable, and that natural justice is part of that fairness. The court there treated an order impounding a passport without a hearing as a violation. If natural justice is breached, the usual effect is that the decision is invalid and can be quashed by a writ of certiorari, though courts may sometimes ask whether a hearing would have made any difference.

Key rules to remember

Rule against bias: Nemo judex in causa sua = no person shall be a judge in their own cause; Test: real likelihood or reasonable suspicion of bias. Types: pecuniary, personal, official or subject-matter.
Rule of fair hearing: Audi alteram partem = hear the other side; Components: notice, disclosure of material, opportunity to present the case, and in suitable cases cross-examination.
Reasoned decision: Authority must record reasons for its order; Stronger for quasi-judicial decisions. Reasons support appeal and judicial review.
Pecuniary bias: Any direct financial interest disqualifies the decision-maker; Disqualification applies even if the interest is small. No proof of actual prejudice is needed.
Exceptions to natural justice: Statutory exclusion; urgency or emergency; impracticability; legislative action; purely preliminary or administrative acts; where no prejudice results; Exceptions must be applied with care. They do not cover arbitrary action.
Effect of violation: Breach of natural justice → order is void or voidable and can be quashed by certiorari; Courts may consider whether prejudice was caused. A fresh decision after a proper hearing is usually allowed.

How to solve Principles of Natural Justice questions

Use this method for both theory questions and fact-based problems on natural justice.

1Identify the type of question: define a principle, list exceptions, or apply the rules to given facts.
2Name the authority and say whether it acts in a judicial, quasi-judicial or administrative capacity, and whether its decision affects someone's rights.
3State the relevant rule in one or two lines: nemo judex in causa sua, audi alteram partem or the duty to give reasons.
4For bias, find the interest or link in the facts and classify it as pecuniary, personal or official bias. Apply the test of real likelihood or reasonable suspicion.
5For hearing, check notice, disclosure of material, opportunity to respond and a fair procedure. Note which element is missing.
6Check whether any exception applies, such as statutory exclusion, urgency or impracticability. Do not assume it applies without facts.
7Add a relevant case, for example Maneka Gandhi for fair procedure, only if you are certain of its holding.
8Write a clear conclusion: whether the principle was violated, and the effect, namely that the order can be quashed by a writ.

Quickest way: Rule, Facts, Conclusion in five lines

When to use it: Use this when you have little time, especially for short-answer or problem-type questions.

Line 1: name the principle breached (bias, no hearing, no reasons).
Line 2: state the rule in plain words.
Line 3: pick the exact fact that shows the breach, such as an interested member on the panel or no notice given.
Line 4: mention any exception and say why it does or does not apply.
Line 5: conclude that the order is open to be quashed by certiorari, or is valid because an exception applies.

Common mistakes in Principles of Natural Justice

Writing only the Latin maxims without explaining them or applying them to facts.
Students memorise the maxims as one-line definitions.
Fix: Give the meaning, the test or components, and then link at least one fact from the question.
Saying bias must be proved as actual prejudice.
Students confuse it with proof in criminal cases.
Fix: State that the test is real likelihood or reasonable suspicion. Actual bias need not be shown.
Treating pecuniary bias like other kinds and asking for proof of effect.
The three types are not separated in revision.
Fix: Remember that a direct financial interest disqualifies the decision-maker, however small it is.
Applying natural justice to every action, including legislative acts.
Students overstate the rule and forget the exceptions.
Fix: Learn the exceptions and check whether the action is legislative, urgent or excluded by statute.
Forgetting the requirement of reasons and the effect of violation.
Focus stays on the two main maxims.
Fix: Add a line on reasoned decisions and end every answer with the legal effect, namely quashing by certiorari.
Citing a case with the wrong holding or inventing one.
Case names are memorised without the point of law.
Fix: Quote only the cases you know well and state the point they decide in a single line.

Worked examples

Example 1

A university committee of five members is hearing a complaint of misconduct against a lecturer, Mr Rao. One member, Dr Iyer, is the complainant's brother. The committee finds Mr Rao guilty. Mr Rao challenges the order. Advise.

Show the solution

Rule: under nemo judex in causa sua, a decision-maker must be impartial. The test is real likelihood or reasonable suspicion of bias.
Facts: Dr Iyer is the complainant's brother and sat on the committee that decided the complaint.
Analysis: this is personal bias based on a family relationship. A reasonable person would suspect that Dr Iyer may favour the complainant. Actual prejudice need not be proved.
Exceptions: nothing in the facts shows a statutory exclusion or necessity that required Dr Iyer to sit.
Effect: the participation of a biased member taints the committee's decision.

Answer: The order is vitiated by personal bias and violates the rule against bias. Mr Rao can seek a writ of certiorari to quash it, and the matter may be decided again by a committee without Dr Iyer.

Example 2

A State authority cancels the licence of a trader, Mr Shah, on the basis of a confidential report. No notice is given and he is not allowed to see the report or reply. Discuss whether the order is valid.

Show the solution

Rule: under audi alteram partem, a person whose rights are affected must get notice, disclosure of the material against them and a fair opportunity to respond.
Facts: the licence was cancelled, which has civil consequences for Mr Shah. He received no notice, no access to the report and no chance to reply.
Analysis: all the key elements of a fair hearing are missing. The authority is also expected to give reasons for such an order.
Exceptions: nothing indicates urgency, impracticability or a statute that excludes a hearing. A bare claim of confidentiality does not by itself remove the duty to act fairly.
Support: the Supreme Court in Maneka Gandhi v. Union of India held that procedure affecting a person's rights must be fair, just and reasonable, and that natural justice forms part of this.

Answer: The cancellation violates audi alteram partem. The order is invalid and Mr Shah may approach the High Court under Article 226 for certiorari. The authority may act again only after giving him notice and a fair hearing.

Exam tips

Structure every answer as rule, facts, conclusion. Examiners reward this order.
Use sub-headings for the two maxims and for reasoned decisions. Keep each part to a few lines.
Always mention the test for bias: real likelihood or reasonable suspicion.
List exceptions in a short bullet list, but add that they cannot cover arbitrary action.
End with the effect of violation and the remedy, namely a writ of certiorari.

Practice questions from Administrative Laws

Principles of Natural Justice: frequently asked questions

What are the two main principles of natural justice?

They are nemo judex in causa sua, meaning no one should be a judge in their own cause, and audi alteram partem, meaning hear the other side. The first ensures an unbiased decision-maker. The second ensures a fair hearing.

What are the types of bias?

The three types are pecuniary bias, personal bias and official or subject-matter bias. Pecuniary bias is a financial interest. Personal bias comes from relationships or hostility. Official bias comes from a fixed view or policy interest.

Is a reasoned decision part of natural justice?

Courts treat the giving of reasons as an important part of fair procedure, especially for quasi-judicial orders. Reasons show application of mind and allow review. Its strength may depend on the nature of the decision.

What are the exceptions to natural justice?

Common exceptions include clear statutory exclusion, real urgency or emergency, impracticability, legislative action and purely preliminary acts. Courts apply them narrowly. They do not allow arbitrary action.

What is the effect if natural justice is violated?

The decision can be held invalid and quashed by the High Court or Supreme Court through a writ such as certiorari. Courts may look at whether prejudice resulted. The authority can often decide again after a fair process.