Evidence Law: Indian Evidence Act, 1872 / Bharatiya Sakshya Adhiniyam, 2023 (BSA)
Burden of Proof vs Onus of Proof under the Bharatiya Sakshya Adhiniyam, 2023
The Adhiniyam uses one expression where the law recognises two ideas. Section 104 defines 'burden of proof', and courts have long distinguished within it between a burden fixed by the pleadings which never moves, and an onus which shifts back and forth as the evidence comes in. The distinction is not a refinement of vocabulary. It decides who loses when the court is left uncertain, and it explains why an argument about burden of proof is usually pointless once both sides have led their evidence.
1. The Statutory Starting Point
Sections 104, 105 and 106, BSA Section 104. Whoever desires any Court to give judgment as to any legal right or liability, dependent on the existence of facts which he asserts, must prove that those facts exist. When a person is bound to prove the existence of any fact, it is said that the burden of proof lies on that person. Section 105. The burden of proof in a suit or proceeding lies on that person who would fail if no evidence at all were given on either side. Section 106. The burden of proof as to any particular fact lies on that person who wishes the Court to believe in its existence, unless it is provided by any law that the proof of that fact shall lie on any particular person. |
The statute speaks throughout of the 'burden of proof' and nowhere uses the word 'onus'. The distinction is judicial, and it was drawn because the single statutory expression was doing two different jobs.
2. The Distinction
📖 A. Raghavamma v. A. Chenchamma, AIR 1964 SC 136 Held: There is an essential distinction between burden of proof and onus of proof. Burden of proof lies upon the person who has to prove a fact and it never shifts, but the onus of proof shifts. Such a shifting of onus is a continuous process in the evaluation of evidence. Ratio: The classical Indian statement of the distinction. The burden is fixed; the onus moves. |
Two ideas are therefore contained within the single statutory expression, and the decisions call them by different names in different places — legal burden and evidential burden, burden of proof and onus of proof, persuasive burden and provisional burden. The labels vary; the two ideas do not.
Burden of proof | Onus of proof | |
|---|---|---|
Also called | Legal burden; persuasive burden; burden on the pleadings | Evidential burden; provisional burden; burden of adducing evidence |
Fixed by | The pleadings and the substantive law | The state of the evidence at any moment |
Provision | Sections 104 and 105 | Section 106, and every presumption in the Adhiniyam |
Does it shift? | Never. It remains where the pleadings place it | Constantly, as evidence accumulates on either side |
When it matters | At the end of the case, if the court is left in doubt | During the case, in deciding who must respond |
Consequence of failure | The party loses on that issue | The party risks an adverse finding unless he responds |
Determined at | The outset, and unchanged throughout | Continuously — 'a continuous process in the evaluation of evidence' |
3. The Burden That Never Shifts
The legal burden is fixed by the pleadings and by the substantive law, and nothing that happens at the trial moves it.
A plaintiff suing on a contract must prove the contract, its breach and his loss. He bears that burden when the suit is filed and he bears it when judgment is delivered. If, at the end of everything, the court is unable to decide whether the contract was made, the plaintiff loses — not because the defendant proved anything, but because the plaintiff failed to.
This is what Section 105 describes. The burden lies on the person who would fail if no evidence at all were given on either side, and the test is applied by imagining exactly that: strip out all the evidence and ask who loses. The answer identifies the party carrying the legal burden.
📖 Anil Rishi v. Gurbaksh Singh, (2006) 5 SCC 558 Held: There is a distinction between burden of proof and onus of proof. The burden of proof lies on a person who has to prove the fact and which never shifts. The onus of proof shifts, and such a shifting of onus is a continuous process in the evaluation of evidence. In a suit in which the plaintiff alleges fraud or misrepresentation, the initial burden lies on him, and it does not shift merely because the defendant stands in a position of confidence, unless a statutory provision so provides. Ratio: The legal burden is placed by the pleadings and the substantive law, and a party who has pleaded a case must prove it. |
⚠ A reverse burden moves the legal burden; it does not abolish the distinction Where a statute places a burden on a party who would not ordinarily bear it — Section 108 on an accused setting up a defence, Section 114 on a party in a position of active confidence, Section 118 on a person against whom the dowry-death presumption operates — the legal burden on that issue is placed on him by the statute. It is then fixed there, and it does not shift back. What shifts within the issue is the onus. |
4. The Onus That Shifts
The onus is a function of the evidence as it stands at any moment, and it moves whenever the balance of the material changes.
A plaintiff suing on a promissory note produces the note and proves the signature. At that point the material before the court, if nothing else were said, would justify a decree. The onus has moved to the defendant — not because the legal burden has changed, but because the plaintiff has led enough to succeed unless he is answered.
The defendant then proves that the note was given for a gambling debt. The onus moves back. The plaintiff proves that the debt was lawful. It moves again. This is what A. Raghavamma calls a continuous process in the evaluation of evidence, and it may happen several times within a single issue.
Three mechanisms move the onus, and they are examined separately.
- Sufficient evidence. A party who leads enough to establish his case prima facie puts the other to an answer.
- A presumption. Where a foundational fact is proved and a presumption arises, the onus moves to the party against whom it operates.
- A statutory provision. Sections 108, 109, 111, 112, 113 and 114 each place the onus on a particular person on proof of a stated circumstance.
5. Why the Distinction Matters
Four practical consequences follow, and each disposes of an argument that is otherwise made.
5.1 The burden decides a case only in equipoise
The legal burden operates at one moment only — when the court, having heard everything, is unable to decide. Where the evidence points clearly one way, the burden is irrelevant: the court decides on the evidence, and it does not matter who had to prove what.
This is why the settled proposition is that once both parties have led evidence, the question of burden of proof largely becomes academic. It matters where the scales are level, and where they are not level it decides nothing.
5.2 A wrong allocation is not always fatal
It follows that a mistake about the burden does not necessarily vitiate a judgment. Where the court has recorded clear findings on the evidence, an appellate court will ordinarily not interfere merely because the burden was placed on the wrong party, since the misallocation made no difference to the result.
Where, however, the trial court decided the case on the burden — holding that a party failed because he had not discharged it — a wrong allocation goes to the root, and the finding cannot stand.
5.3 The right to begin follows the legal burden
Order XVIII Rule 1 of the Code of Civil Procedure, 1908 gives the plaintiff the right to begin, unless the defendant admits the facts alleged by the plaintiff and contends that on a point of law or on some additional facts he is entitled to judgment — in which case the defendant begins.
The rule follows the test in Section 105. A defendant who has admitted the plaintiff's facts and set up a plea of his own would fail if no evidence at all were given, and he therefore opens.
5.4 Pleading determines the burden
Because the legal burden is fixed by the pleadings, the way a case is pleaded determines who must prove what. A party who pleads fraud must prove fraud; a party who pleads that a transaction was benami must prove it; a party who sets up a custom must establish it.
A pleading that asserts more than is necessary therefore assumes a burden that need not have been assumed, and this is a real and avoidable cost in drafting.
6. The Distinction in a Criminal Trial
The two ideas operate with particular clarity on the criminal side, and keeping them apart resolves most of the confusion about reverse burdens.
The prosecution | The accused | |
|---|---|---|
Legal burden | To prove every ingredient of the offence, beyond reasonable doubt. It never shifts | None, except where a statute places one — Section 108, and Sections 115, 117, 118 and 120 |
Standard | Beyond reasonable doubt | Preponderance of probabilities, where a burden is placed on him |
Evidential onus | Shifts once the prosecution has led enough to call for an answer | Shifts back once he has led material raising a doubt |
Effect of failure | Acquittal | The defence is not established — but the material may still raise a reasonable doubt |
The final row is the one that matters most and is the source of the commonest error. An accused who fails to establish a defence under Section 108 has not thereby strengthened the prosecution case. The court must still ask, separately, whether the material he led raises a reasonable doubt about the ingredients the prosecution had to prove. If it does, he is acquitted — despite having failed to discharge the burden on him.
📖 Woolmington v. Director of Public Prosecutions, [1935] AC 462 (HL) Held: Throughout the web of the English criminal law one golden thread is always to be seen — that it is the duty of the prosecution to prove the prisoner's guilt, subject to the defence of insanity and subject also to any statutory exception. If, at the end of and on the whole of the case, there is a reasonable doubt created by the evidence given by either the prosecution or the prisoner, the prosecution has not made out the case and the prisoner is entitled to an acquittal. Ratio: The legal burden rests on the prosecution throughout, and a doubt raised by the defence evidence operates in the accused's favour even where the defence itself is not established. |
7. Where the Distinction Is Missed
Four arguments recur and each rests on collapsing the two ideas.
'The burden shifted to the defendant, so the plaintiff need prove nothing more.' The onus shifted; the burden did not. If the defendant answers and the court is left uncertain, the plaintiff still loses.
'The accused failed to prove his defence, so he is guilty.' He failed to discharge the burden under Section 108. The prosecution's legal burden is untouched, and the material may still raise a reasonable doubt.
'The trial court placed the burden wrongly, so the judgment must be set aside.' Only if the case was decided on the burden. Where there are clear findings on the evidence, the misallocation is immaterial.
'The presumption is conclusive because the other side led no evidence.' A presumption unanswered stands, but that is a finding on the evidence, not a change in the burden. The party in whose favour it operated still had to prove the foundational fact, and if he did not, the presumption never arose.
⚠ Every presumption requires a foundation This is the point at which arguments about shifting most often fail. A presumption operates on proof of something — that a document is thirty years old and came from proper custody, that a certified copy is in the prescribed form, that cruelty occurred soon before the death. The party invoking it bears the burden of that foundational fact, and no onus shifts until he has discharged it. |
8. The Two Ideas Illustrated
A suit for recovery on a promissory note shows the whole mechanism working.
Stage | Burden (legal) | Onus (evidential) |
|---|---|---|
Plaint filed, note pleaded | On the plaintiff — he would fail if no evidence were given | On the plaintiff |
Note produced, signature proved | Still on the plaintiff | Moves to the defendant — the material would justify a decree if unanswered |
Defendant proves the note was given for an unlawful consideration | Still on the plaintiff | Moves back to the plaintiff |
Plaintiff proves the consideration was lawful | Still on the plaintiff | Moves to the defendant again |
Evidence closed, court in doubt on the consideration | The plaintiff loses on that issue | Not applicable — the onus has done its work |
The final row is the point of the whole distinction. The onus moved four times and decided nothing. The burden decided the case, and it decided it by remaining exactly where the pleadings placed it at the outset.
9. The Position Stated Shortly
- The Adhiniyam uses one expression for two ideas. 'Burden of proof' in Section 104 covers both.
- The burden never shifts; the onus shifts constantly — A. Raghavamma, and shifting is 'a continuous process in the evaluation of evidence'.
- The legal burden is fixed by the pleadings and the substantive law; the onus is fixed by the state of the evidence.
- Section 105 supplies the test for the legal burden — who would fail if no evidence at all were given on either side.
- The burden decides a case only in equipoise. Once both sides have led evidence, the question largely becomes academic.
- A wrong allocation is fatal only where the case was decided on the burden, not where there are clear findings on the evidence.
- In a criminal trial the prosecution's legal burden never shifts, and an accused who fails to establish a defence may still raise a reasonable doubt.
- No onus shifts until the foundational fact of a presumption is proved.
10. Related Topics and Provisions
Topic or provision | Connection |
|---|---|
Burden of Proof — Sections 104 to 120 | The chapter as a whole |
Shifting of Burden of Proof | The mechanisms by which the onus moves |
Proof, Burden of Proof and Standard of Proof | The standards applied on each side |
Presumptions under the Bharatiya Sakshya Adhiniyam | The three grades, and the foundational fact each requires |
Sections 108 and 109, BSA | The reverse burdens on an accused and on a person with exclusive knowledge |
Section 119, BSA | The residuary presumption and its nine illustrations |
Order XVIII Rule 1, Code of Civil Procedure, 1908 | The right to begin, which follows the legal burden |