Falsus in Uno, Falsus in Omnibus under the Bharatiya Sakshya Adhiniyam, 2023: Why the Maxim Is Not Followed in India

False in one thing, false in everything. It is a tidy proposition and an unusable one, because scarcely any witness gives a wholly accurate account of anything. Indian courts rejected the maxim as a rule of law more than seventy years ago and replaced it with a duty that is considerably harder to discharge: to sift the evidence, separate the grain from the chaff, and act on what survives. The rejection is settled; the difficulty is in the sifting.

1. The Maxim

Falsus in uno, falsus in omnibus — false in one thing, false in everything. Applied as a rule of law, it would require a court that finds a witness untruthful on any material point to reject the whole of his evidence.

Nothing in the Adhiniyam adopts it, and nothing in the Adhiniyam requires a court to reject evidence on that footing. On the contrary, the statute points the other way.

Provision	What it establishes
Section 124	All persons are competent unless prevented from understanding the questions or giving rational answers. There is no disqualification for untruthfulness
Section 139	No particular number of witnesses is required for the proof of any fact — evidence is weighed, not counted
Section 157	A witness may be cross-examined by the party calling him, and the evidence is not thereby effaced
Section 158	Credit may be impeached in three ways — which presupposes that impeached evidence remains on the record to be assessed
Section 156	A false answer on a collateral matter makes the witness liable to prosecution — not his evidence inadmissible

⚠ The maxim is not a rule of evidence anywhere in Indian law

It appears in no section of the Adhiniyam, in no procedural code, and in no decision as a binding rule. Where courts refer to it, they do so in order to say that it does not apply. A submission that a witness must be wholly rejected because he was shown to be false on one point is therefore not a submission of law at all — it is an invitation to the court to adopt an approach the Supreme Court has repeatedly declined to adopt.

2. The Indian Position

📖 Nisar Ali v. State of Uttar Pradesh, AIR 1957 SC 366

Held: The maxim falsus in uno, falsus in omnibus has not received general acceptance in different jurisdictions in India; nor has this maxim come to occupy the status of a rule of law. It is merely a rule of caution.

All that it amounts to is that in such cases the testimony may be disregarded, and not that it must be disregarded.

Ratio: The maxim is a rule of caution and no more. It permits, but never requires, rejection of the whole.

📖 Ugar Ahir v. State of Bihar, AIR 1965 SC 277

Held: The maxim falsus in uno, falsus in omnibus is neither a sound rule of law nor a rule of practice. Hardly one comes across a witness whose evidence does not contain a grain of untruth or at any rate exaggeration, embroideries or embellishment.

It is, therefore, the duty of the Court to scrutinise the evidence carefully and, in terms of the felicitous metaphor, separate the grain from the chaff. But it cannot obviously disbelieve the substratum of the prosecution case or the material parts of the evidence and reconstruct a story of its own out of the rest.

Ratio: The maxim is rejected as both law and practice. The court's duty is to separate grain from chaff — and its limit is that it may not reconstruct a new case from the residue.

The second half of Ugar Ahir is as important as the first and is much less often quoted. Sifting is not licence. A court may accept part of a witness's account and reject part; it may not disbelieve the substratum of the case and then build a different story out of what is left.

📖 Gangadhar Behera v. State of Orissa, (2002) 8 SCC 381

Held: The maxim falsus in uno, falsus in omnibus has no application in India and the witnesses cannot be branded as liars. The maxim has not received general acceptance, nor has it come to occupy the status of a rule of law. It is merely a rule of caution, and all that it amounts to is that in such cases the testimony may be disregarded and not that it must be disregarded.

The doctrine merely involves the question of weight of evidence which a Court may apply in a given set of circumstances, but it is not what may be called a mandatory rule of evidence.

Falsity of a particular material witness or material particular would not ruin it from the beginning to end. The Court has to make an effort to disengage the truth from falsehood, to sift the grain from the chaff — unless the testimony is so intertwined and inseparable that the exercise cannot be undertaken without the risk of injustice.

Ratio: The leading modern statement. The maxim has no application; the question is one of weight; and the court sifts, except where truth and falsehood are inextricably mixed.

3. Why the Maxim Is Rejected

Five reasons run through the decisions, and they are worth stating separately.

Almost no witness is wholly accurate. Ugar Ahir puts it directly: hardly one comes across a witness whose evidence does not contain a grain of untruth, or at least exaggeration, embroidery or embellishment. A rule requiring rejection on that account would reject nearly everybody.
Exaggeration is not fabrication. Witnesses routinely embellish to make an account more convincing, to fill gaps in memory with what they assume must have happened, or to include people they believe were involved. That is a reason for caution about the embellished parts, not about the whole.
Indian conditions make partisan evidence common. Where factions prevail and offences arise out of enmity, witnesses are ordinarily partisan — and Masalti v. State of Uttar Pradesh, AIR 1965 SC 202 held that mechanical rejection of such evidence would invariably lead to failure of justice.
The maxim would reward the guilty. An accused who could procure one demonstrably false embellishment from a truthful witness could destroy the whole of his evidence. The rule would place a premium on contaminating testimony rather than on meeting it.
It confuses credibility with admissibility. Whether a witness is to be believed is a question of weight for the court at the end, on the whole of the material. A rule of automatic rejection would convert it into a rule of exclusion.

4. Grain and Chaff — What the Court Actually Does

The replacement for the maxim is a duty, and it is worth setting out what discharging it involves.

Identify precisely what is false. Not 'the witness exaggerated' but which statement, on which point, is shown to be untrue and by what material.
Ask why it is false. Deliberate fabrication, embellishment to strengthen a true account, honest error, faulty memory, and tutoring are different things with different consequences.
Ask whether the falsehood touches the core. A false detail about a peripheral matter is different from a false account of the central occurrence.
Ask what independently supports the residue. The part of the account that fits the medical evidence, the recoveries, the documents and the other witnesses is the part that ordinarily survives.
Ask whether the true and the false can be separated at all. This is the Gangadhar Behera qualification, and it is where the exercise sometimes stops.

⚠ The limit on sifting

Two limits confine the exercise, and a judgment that ignores them is open to attack. First, the court may not disbelieve the substratum of the case and reconstruct a different story from the residue — Ugar Ahir. Second, where the truth and the falsehood are so intertwined that they cannot be separated without a risk of injustice, the court does not sift; it rejects — Gangadhar Behera. Sifting presupposes that a reliable core can be identified. Where the whole account is contaminated, there is no grain to separate.

5. The Maxim and Related Doctrines

Four neighbouring propositions are often argued together with the maxim and are governed differently.

Proposition	Position
A witness declared hostile must be rejected	Wrong. The evidence is not wholly effaced; the court may rely on so much as is creditworthy — Sat Paul v. Delhi Administration, (1976) 1 SCC 727
A related or interested witness must be rejected	Wrong. Relationship is not a ground for suspicion and may be a guarantee of truth — Dalip Singh v. State of Punjab, AIR 1953 SC 364; partisan evidence is not to be mechanically rejected — Masalti
Minor contradictions destroy the evidence	Wrong. Discrepancies not touching the core are expected, and their absence may itself suggest rehearsal
An accomplice must be corroborated	A rule of prudence, not of law — Section 138 with illustration (b) to Section 119
A witness found untruthful on one point must be rejected on all	Wrong — the maxim itself, rejected in Nisar Ali, Ugar Ahir and Gangadhar Behera

What unites all five is the same error: treating a label as a rule. Hostility, relationship, interest, discrepancy and falsehood each identify a reason for the court to look carefully. None of them is a reason to stop looking.

6. The Comparative Position

The maxim is of Roman origin and travelled into the common law, where it has had different fortunes.

Jurisdiction	Status
India	Not a rule of law or of practice. A rule of caution only; the court sifts grain from chaff
England	Never a rule of law. The tribunal of fact may accept part of a witness's evidence and reject the rest, and juries are so directed
United States	Survives in some jurisdictions as a permissible inference on which a jury may be instructed, not as a mandatory direction

The reason the maxim retained more life in jury systems is structural. A jury returns a verdict without reasons, and a direction framed as a permissible inference is a way of guiding it. A judge sitting without a jury must give reasons, and is therefore able to state precisely which part of a witness's evidence he accepts and why — which is exactly what the grain-and-chaff approach requires and what the maxim would make unnecessary.

7. How the Point Is Argued

7.1 For the party attacking the witness

Do not invoke the maxim as a rule. It will be met with Gangadhar Behera and the submission will fail.
Show that the falsehood goes to the core, not to a peripheral detail.
Show that it was deliberate rather than an error of memory or an embellishment.
Argue inextricability. The strongest form of the submission is that the true and the false cannot be separated without a risk of injustice — which is the one route Gangadhar Behera leaves open.
Show that the residue is unsupported. A core that nothing independently corroborates is much harder to accept once part of the account is shown false.

7.2 For the party relying on the witness

Concede the falsehood where it is established. Defending the indefensible damages the rest.
Confine it. Identify exactly what is false and show that it does not touch the substratum.
Explain it — exaggeration, assumption, lapse of time, or the natural tendency to include everybody believed to be involved.
Point to what corroborates the surviving core — medical evidence, recoveries, documents, other witnesses.
Cite the rule. Nisar Ali, Ugar Ahir and Gangadhar Behera establish that falsity in a material particular does not ruin the evidence from beginning to end.

8. The Position Stated Shortly

Falsus in uno, falsus in omnibus is not a rule of law or of practice in India.
It is a rule of caution only — the testimony may be disregarded, not that it must be — Nisar Ali.
Hardly any witness is free of exaggeration, embroidery or embellishment, and a rule of rejection would reject nearly everybody — Ugar Ahir.
The court's duty is to separate the grain from the chaff and to disengage the truth from the falsehood.
Falsity in a material particular does not ruin the evidence from beginning to end — Gangadhar Behera.
The question is one of weight, not a mandatory rule of evidence.
Two limits — the court may not reconstruct a new case from the residue, and may not sift where the true and the false are inextricably intertwined.
Nothing in the Adhiniyam adopts the maxim, and several sections point the other way.

9. Related Topics and Provisions

Topic or provision	Connection
Special Types of Witnesses	Hostile, interested, related and partisan witnesses, and the same error of treating a label as a rule
Hostile Witness — Section 157	Evidence not wholly effaced — the closest parallel
Number of Witnesses — Section 139	Quality against quantity, and the three-fold classification in Vadivelu Thevar
Impeaching the Credit of a Witness — Section 158	How credit is attacked, and what follows
The Finality Rule — Section 156	A false answer makes the witness liable to prosecution, not his evidence inadmissible
Appreciation of Evidence and Standard of Proof	The assessment in which the sifting is carried out
Accomplice Evidence — Section 138	Corroboration as a rule of prudence, distinguished from a rule of law