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Legal Reasoning · 23 min read
Legal reasoning questions supply the principle you need, so this material is not strictly required to answer them. It is required to read them quickly. A passage discussing a Supreme Court judgment on preventive detention is very much harder if you must work out what preventive detention, a writ and a bench strength are while also applying the principle.
This page therefore covers the vocabulary and the institutional map — sources of law, the court hierarchy, the maxims that recur, and the landmark cases that CLAT passages are repeatedly built around. It also flags the change that makes most older material out of date: India replaced its three principal criminal statutes in July 2024.
Current affairs · 19 September 2026
Every item is dated, read on the conducting body’s or ministry’s own site, and written with the question it becomes. Read today’s items, take the quiz, or download the month as a PDF.
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Why it matters
| Exam | Expected questions | How it usually appears |
|---|---|---|
| CLAT UG Legal Reasoning | Background to the whole section | Not asked as recall, but assumed by every passage. |
| AILET | Some direct questions | AILET has historically asked more legal knowledge directly than CLAT. |
| CLAT and AILET General Knowledge | 2–4 questions | Landmark judgments and legal developments appear in the current affairs section. |
| Judiciary preliminary examinations | A major section | Tested as substantive knowledge rather than as background. |
| UPSC Prelims and Mains | 1–3 questions | Within polity — the courts, judicial review and landmark cases. |
Where Indian law comes from
Five sources, in a rough hierarchy. Understanding which is which explains why a court can strike down a statute but not the Constitution, and why a High Court judgment binds some courts and not others.
Who decides what
India has a single integrated judiciary — one hierarchy from the district courts to the Supreme Court, with no separate system of state courts as in the United States.
| Court | Constitutional basis | Jurisdiction |
|---|---|---|
| Supreme Court | Article 124; inaugurated 28 January 1950 | Original under Article 131 for disputes between the Union and states; writ jurisdiction under Article 32 for fundamental rights; appellate under Articles 132 to 134; special leave under Article 136; advisory under Article 143. It is a court of record under Article 129 and its law binds all courts under Article 141. |
| High Courts | Article 214 | Writ jurisdiction under Article 226, which is wider than the Supreme Court's because it extends to any legal right and not only to fundamental rights. Superintendence over all courts and tribunals in its territory under Article 227. |
| District courts | Articles 233 to 237 | The principal courts of original civil and criminal jurisdiction in a district. The district judge is appointed by the Governor in consultation with the High Court. |
| Subordinate courts | Under state legislation | Civil judges and judicial magistrates, with the courts of Judicial Magistrate First Class and Second Class exercising criminal jurisdiction below the Sessions Court. |
| Tribunals | Articles 323A and 323B, added by the 42nd Amendment | Specialised bodies such as the Central Administrative Tribunal for service matters, the National Green Tribunal for environmental disputes, and the National Company Law Tribunal. Their decisions remain subject to High Court writ jurisdiction. |
| Lok Adalats and Gram Nyayalayas | Legal Services Authorities Act, 1987; Gram Nyayalayas Act, 2008 | Alternative forums for settlement by compromise and for village-level justice. A Lok Adalat award is deemed a decree of a civil court and no appeal lies against it. |
The 2024 replacement
The single most important recent change in Indian law for exam purposes, and the one that makes most older preparation material out of date.
| New law | Replaced | Subject |
|---|---|---|
| Bharatiya Nyaya Sanhita | The Indian Penal Code, 1860 | Substantive criminal law — what conduct is an offence and what punishment it attracts. |
| Bharatiya Nagarik Suraksha Sanhita | The Code of Criminal Procedure, 1973 | Criminal procedure — investigation, arrest, bail, trial and appeal. |
| Bharatiya Sakshya Adhiniyam | The Indian Evidence Act, 1872 | The law of evidence — what may be proved and how. |
Civil and criminal
Enough procedure to follow a passage, and no more. The distinction between the two systems is what matters.
| Feature | Civil | Criminal |
|---|---|---|
| Purpose | To enforce a private right or remedy a private wrong | To punish conduct treated as a wrong against society |
| Parties | Plaintiff against defendant | The State, or a complainant, against the accused |
| Standard of proof | On the balance of probabilities — more likely than not | Beyond reasonable doubt, a much higher standard |
| Outcome | Damages, injunction, specific performance, declaration | Conviction and sentence, or acquittal |
| Governing procedure | The Code of Civil Procedure, 1908 | The Bharatiya Nagarik Suraksha Sanhita, replacing the Code of Criminal Procedure, 1973 |
| Effect of the same act | The same conduct can give rise to both — a road accident may be a tort and an offence, tried separately | Acquittal in the criminal case does not bar the civil claim, because the standards of proof differ |
The vocabulary of the passages
Latin maxims and legal terms appear constantly in legal writing and therefore in the passages. Learning them is a vocabulary exercise, not a legal one.
| Maxim | Meaning | Where it appears |
|---|---|---|
| Audi alteram partem | Hear the other side | Natural justice; any decision affecting a person requires notice and a hearing. |
| Nemo judex in causa sua | No one should judge his own cause | The rule against bias, the second limb of natural justice. |
| Actus non facit reum nisi mens sit rea | An act does not make a person guilty unless the mind is also guilty | The requirement of a mental element in criminal law. |
| Ubi jus ibi remedium | Where there is a right there is a remedy | The foundation of tort law. |
| Volenti non fit injuria | To one who consents no injury is done | A defence in tort where the plaintiff accepted the risk. |
| Res ipsa loquitur | The thing speaks for itself | Negligence inferred from the accident itself, shifting the burden to the defendant. |
| Caveat emptor | Let the buyer beware | The older rule of sale, now heavily qualified by consumer protection law. |
| Ignorantia juris non excusat | Ignorance of the law is no excuse | Criminal liability; a mistake of fact may excuse, a mistake of law does not. |
| Doli incapax | Incapable of crime | The presumption that a very young child cannot form criminal intent. |
| Stare decisis | To stand by decided matters | The doctrine of precedent. |
| Ratio decidendi and obiter dicta | The reason for the decision; things said by the way | Only the first binds; the second persuades. |
| Ultra vires | Beyond the powers | Action exceeding the authority conferred, whether by a statute or by a company's constitution. |
The judgments that recur
CLAT passages are frequently built around commentary on these decisions, and they appear in the general knowledge section as well. Learn what each decided in a sentence.
| Case | Year | What it decided |
|---|---|---|
| Kesavananda Bharati v. State of Kerala | 1973 | Parliament may amend any part of the Constitution but may not damage or destroy its basic structure. Decided by a bench of thirteen, seven to six. |
| Maneka Gandhi v. Union of India | 1978 | The procedure depriving a person of life or liberty under Article 21 must be fair, just and reasonable, and Articles 14, 19 and 21 must be read together. |
| Minerva Mills v. Union of India | 1980 | Struck down parts of the 42nd Amendment; the balance between Fundamental Rights and Directive Principles is itself part of the basic structure. |
| Indra Sawhney v. Union of India | 1992 | Upheld reservation for other backward classes, introduced the creamy layer concept, and indicated that reservations should ordinarily not exceed fifty per cent. |
| S. R. Bommai v. Union of India | 1994 | A proclamation of President's rule under Article 356 is subject to judicial review, and the floor of the House is the test of majority. |
| Vishaka v. State of Rajasthan | 1997 | Laid down binding guidelines against sexual harassment at the workplace in the absence of legislation, later given statutory form in 2013. |
| Shreya Singhal v. Union of India | 2015 | Struck down Section 66A of the Information Technology Act as vague and overbroad, violating freedom of speech. |
| K. S. Puttaswamy v. Union of India | 2017 | Recognised the right to privacy as a fundamental right intrinsic to Article 21. |
| Navtej Singh Johar v. Union of India | 2018 | Read down Section 377 of the Indian Penal Code so far as it criminalised consensual same-sex relations between adults. |
| Olga Tellis v. Bombay Municipal Corporation | 1985 | The right to livelihood is part of the right to life under Article 21. |
| ADM Jabalpur v. Shivkant Shukla | 1976 | The Habeas Corpus case, holding that the right to move a court could be suspended during an emergency. Its reasoning has since been expressly disapproved. |
| M. C. Mehta cases | From the 1980s | A series of environmental judgments establishing absolute liability for hazardous industry and the polluter pays and precautionary principles in Indian law. |
Rarely as bare recall. A CLAT passage will discuss a principle drawn from a judgment and ask you to apply it to new facts, so what matters is knowing what the case established rather than its citation or the names of the judges. In the general knowledge section, by contrast, a recent judgment may be asked directly, which is a reason to follow legal news through the year.
Bar, aid and alternatives
A short institutional section, relevant both to the exam and to the career the exam leads to.
Solved examples
Read the steps rather than the answer. The method is what transfers to the next question.
Why is a High Court's writ jurisdiction wider than the Supreme Court's?
Answer: Because Article 226 covers any legal right, while Article 32 is confined to fundamental rights.
A judgment contains extensive observations on a question that did not arise for decision. Do they bind lower courts?
Answer: No — they are obiter dicta and persuasive only.
Which statutes replaced the Indian Penal Code, the Criminal Procedure Code and the Evidence Act, and when?
Answer: The three Bharatiya codes, with effect from 1 July 2024.
A person is acquitted in a criminal trial arising from a road accident. Can the injured party still sue for damages?
Answer: Yes — the standards of proof differ, so acquittal does not bar a civil suit.
What are the two rules of natural justice, and when do they apply?
Answer: The right to be heard and the rule against bias, applying even where a statute is silent.
What did Kesavananda Bharati decide, and why is it the most cited Indian case?
Answer: That the basic structure limits the amending power — the foundation of Indian constitutional law since 1973.
A subordinate rule made by a ministry goes beyond what the parent Act permits. What is the position?
Answer: It is ultra vires and liable to be struck down.
Why does a Lok Adalat award carry no right of appeal?
Answer: Because it records a settlement the parties agreed to, so it is final and binding.
Practice
Work each one out before you reveal the answer — the explanation is where the marks are.
Q1Under Article 141 of the Constitution, the law declared by the Supreme Court is binding on:
Q2Which part of a judgment is binding as precedent?
Q3The Indian Penal Code, 1860, was replaced with effect from 1 July 2024 by the:
Q4The standard of proof in a civil case is:
Q5"Audi alteram partem" means:
Q6A rule made under a statute that exceeds the authority conferred by it is:
Q7The writ of quo warranto is used to:
Q8The basic structure doctrine was propounded in:
Q9The right to privacy was recognised as a fundamental right in:
Q10A Constitution Bench of the Supreme Court consists of at least:
Q11"Res ipsa loquitur" is applied in:
Q12An award of a Lok Adalat is:
Q13The Attorney General for India is appointed under:
Q14Vishaka v. State of Rajasthan is associated with:
Q15"Doli incapax" refers to:
Q16The Bar Council of India was created by the:
Questions
Not to reach the answer, but very much to reach it in time. A passage discussing preventive detention, writ jurisdiction and bench strength is far slower to read if those terms have to be worked out while you are also applying the principle. Study this page for reading speed and comprehension, never as a source of answers.
All three principal criminal statutes were replaced with effect from 1 July 2024. The Bharatiya Nyaya Sanhita replaced the Indian Penal Code of 1860, the Bharatiya Nagarik Suraksha Sanhita replaced the Code of Criminal Procedure of 1973, and the Bharatiya Sakshya Adhiniyam replaced the Indian Evidence Act of 1872. Concepts carry over; section numbers do not, so any material citing IPC or CrPC sections is using superseded numbering.
The ratio is the legal reasoning essential to the decision — the principle without which the case could not have been decided as it was — and it binds under Article 141. Obiter dicta are observations made in passing on points that did not arise for decision. They carry persuasive weight, particularly from a large bench, but they do not bind, and distinguishing the two is a standing subject of legal argument.
Because of four words. Article 32 empowers the Supreme Court to issue writs for the enforcement of fundamental rights. Article 226 empowers a High Court to do so for fundamental rights "and for any other purpose", which brings in ordinary legal rights. A High Court can therefore entertain a writ petition in cases the Supreme Court cannot take under Article 32.
Yes, and frequently does. A road accident may be a criminal offence and also a tort; an assault may be prosecuted and separately sued on. The two proceedings are independent, and because the criminal standard of proof is much higher, an acquittal does not bar the civil claim. Passages often turn on candidates assuming otherwise.
Kesavananda Bharati for the basic structure; Maneka Gandhi for the expansion of Article 21; Minerva Mills for the balance between Parts III and IV; Indra Sawhney for reservation and the creamy layer; Bommai for President's rule; Vishaka for workplace harassment; Shreya Singhal for online speech; Puttaswamy for privacy; and Navtej Singh Johar for Section 377. One sentence on each is enough for CLAT purposes.
Audi alteram partem, the right to notice and a hearing, and nemo judex in causa sua, the rule against bias. They apply to any body deciding a matter affecting rights, and crucially they apply even where the governing statute says nothing about procedure — courts read them in. That is why so many administrative law passages turn on them.
About twenty maxims, listed in the maxims section. They appear in legal writing constantly, so not knowing them slows reading badly, but they are a vocabulary exercise rather than a legal one — you need the meaning, not the doctrine behind it. An hour spent on them repays itself several times over in reading speed.
No. A High Court binds the courts subordinate to it within its own territorial jurisdiction. Its decisions are persuasive but not binding on other High Courts, which is why conflicting High Court rulings on the same question can coexist until the Supreme Court settles the point — and settling such conflicts is one of the main reasons cases reach it.
Mostly as background — assumed by the legal reasoning passages rather than tested directly. AILET has historically asked more legal knowledge directly than CLAT. Landmark judgments and recent legal developments also appear in the general knowledge and current affairs section, which is a reason to follow legal news through the preparation year.
Attempt a timed mock while the formulas are fresh — that is what tells you which of them actually stuck.
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