Say the ratio out loud before you open Reasoning — recalling it unprompted is exactly what the exam pays for.
Why it matters
The statutory definition of evidence is deliberately narrow. Under the 1872 Act, evidence meant and included the statements which the court permits or requires witnesses to make before it in relation to matters of fact under enquiry, called oral evidence, and the documents including electronic records produced for the inspection of the court, called documentary evidence. Nothing else. Material on which a judge in fact relies — his own observation, the demeanour of a party, the arguments of counsel — is outside it.
A student who cannot say what the statute counts as evidence cannot begin the proof module, because every later rule (primary and secondary evidence, oral evidence must be direct, burden of proof) operates on evidence as so defined. Sivrajbhan is the Supreme Court's explanation of that definition, and it adds the one qualification that the definition itself does not carry.
Facts
The question before the Court was what the word evidence means in connection with law, and in particular what quality a statement must have before a court may treat it as evidence at all.
Held
The Supreme Court held that the word evidence in connection with law, in all its valid meanings, includes everything except agreement which proves or disproves any fact or matter whose truthfulness is presented for judicial investigation. And the Court added the qualification that carries the case: where one party makes statements and the other party does not get the opportunity to cross-examine those statements to ascertain the truth, that party's statement is not evidence.
Reasoning
Step one — the definition is about function, not form. Evidence is the material by which the truth of a matter submitted to judicial investigation is proved or disproved. That is why the categories in the section are only two, and why both are things placed before the court: statements made before it, and documents produced for its inspection.
Step two — the definition is a closed list of vehicles. Evidence reaches the court by two means only: the statement of witnesses, and documents including electronic records. Anything a judge relies on which arrived by neither route is not evidence in the statutory sense, however persuasive.
Step three — testability is part of the idea. A statement that the opposite party has had no opportunity to test by cross-examination has not been submitted to judicial investigation at all. It fails the function in step one, and so it is not evidence even though it was physically made before the court.
Step three is the usable part of the case. It is the principle that makes sense of the exceptions studied later: statements by persons who cannot be called (BSA s. 26, IEA s. 32) and evidence given in an earlier proceeding (BSA s. 27, IEA s. 33) are relevant because the statute makes them so, notwithstanding the absence of cross-examination, and not because they satisfy the general definition.
Exam use
Use Sivrajbhan to open any essay question asking you to define evidence, distinguish oral from documentary evidence, or explain the difference between relevancy, admissibility, proof and weight. It gives you a sentence of authority for the proposition that the definition is narrow and functional, and a second sentence for the cross-examination point.
It is also the cleanest way to explain why hearsay is excluded without invoking any section: an untested statement is not evidence, so the exceptions must be found in the statute.
It does not decide the weight of any particular class of evidence, and it does not enlarge the two statutory categories.