Introduction
A witness is asked a question that has nothing to do with the actual dispute — it only bears on their character. Must they answer it? The answer is not a fixed rule; it is a judgment call the trial court has to make in the moment, weighing factors that Indian evidence law has spelled out in unusual detail for exactly this situation.
Section 151 of the Bharatiya Sakshya Adhiniyam, 2023 (BSA), in Chapter X ("Of the Examination of Witnesses"), is that framework. It hands the Court discretion over whether a witness must answer a non-relevant, credit-only question, and — unusually for a provision this short — sets out four specific considerations to guide that discretion. This article walks through the framework, what each of the four factors actually means in practice, and how this provision sits at the centre of the cluster of rules governing character-testing questions.
151. Court to decide when question shall be asked and when witness compelled to answer.
(1) If any such question relates to a matter not relevant to the suit or proceeding, except in so far as it affects the credit of the witness by injuring his character, the Court shall decide whether or not the witness shall be compelled to answer it, and may, if it thinks fit, warn the witness that he is not obliged to answer it.
(2) In exercising its discretion, the Court shall have regard to the following considerations:—
(a) such questions are proper if they are of such a nature that the truth of the imputation conveyed by them would seriously affect the opinion of the Court as to the credibility of the witness on the matter to which he testifies;
(b) such questions are improper if the imputation which they convey relates to matters so remote in time, or of such a character, that the truth of the imputation would not affect, or would affect in a slight degree, the opinion of the Court as to the credibility of the witness on the matter to which he testifies;
(c) such questions are improper if there is a great disproportion between the importance of the imputation made against the witness's character and the importance of his evidence;
(d) the Court may, if it sees fit, draw, from the witness's refusal to answer, the inference that the answer if given would be unfavourable.
Section 151 Explained: A Rare Legislative Balancing Test
Most provisions in this part of the BSA state a rule and leave interpretation to case law. Section 151 is different — subsection (2) writes the balancing test directly into the statute, giving the Court four specific considerations rather than leaving the exercise of discretion entirely open-ended. This reflects how genuinely difficult the underlying judgment call is: weighing a witness's dignity and the trial's efficiency against a legitimate need to test credibility.
The Court also has an additional tool available regardless of which way the balance tips: it may warn the witness that they are not obliged to answer, letting the witness themselves decide whether to respond even to a question the Court has not formally barred.
The Four Considerations, One at a Time
Factors (a) and (b) form a natural pair, both turning on how much the imputation, if true, would actually matter to credibility — one pointing toward compelling an answer, the other away from it. Factor (c) adds a proportionality check that operates independently: even a seriously damaging imputation can be improper to press if the witness's actual evidence barely matters to the outcome of the case. Factor (d) is the most distinctive — it means declining to answer is not a costless escape route, since the Court retains the power to treat silence as itself suggestive.
Worked Example: Weighing the Four Factors Together
Consider a witness in a commercial dispute, called to testify about a relatively minor factual detail, who is asked whether they once faced an allegation of dishonesty in an unrelated matter decades earlier. Applying the framework: under factor (b), the remoteness in time weakens how much even a true allegation would affect current credibility; under factor (c), the disproportion between a serious dishonesty imputation and the witness's minor role in this case cuts further against compelling an answer. The Court, weighing both factors, may decide the witness need not answer — and may choose to warn them of that right rather than leaving them to guess.
Section 151 as the Hub of a Four-Provision Cluster
Section 151 does not operate in isolation — it sits at the centre of a tightly linked sequence covering how the law treats non-relevant, credit-testing questions from start to finish.
| Provision | Role |
|---|---|
| Section 150 | Handles the parallel case of a genuinely relevant question, applying Section 137's compelled-answer/immunity framework instead |
| Section 151 | Governs non-relevant, credit-only questions — the four-factor balancing test covered here |
| Section 152 | Requires reasonable grounds before such a question is even asked |
| Section 153 | Lets the Court report an advocate who violates the Section 152 standard |
Section 150 and Section 151 are, in effect, a fork in the road: the same kind of pointed, character-testing question is handled completely differently depending on whether it is relevant to the suit at all. If it is, Section 150 applies, and the strong compulsion-with-immunity rule of Section 137 governs. If it is not — if the question only bears on credit — Section 151's more nuanced, discretionary balancing test takes over.
Section 151 BSA vs. Section 148 IEA: The Rule Is Unchanged
Section 151 corresponds to Section 148 of the Indian Evidence Act, 1872 (IEA), carried forward with the same subsection structure and all four considerations intact.
| Element | IEA, 1872 (Section 148) | BSA, 2023 (Section 151) |
|---|---|---|
| Discretionary compulsion + witness warning | Present | Unchanged |
| Four-factor balancing test | Present | Unchanged |
Because the framework is unchanged, the substantial body of Indian case law weighing these four factors in practice remains directly applicable to Section 151 proceedings under the BSA.
Who Section 151 Actually Affects
- Trial judges carry out the actual balancing exercise, weighing all four factors together rather than mechanically applying any single one.
- Cross-examining advocates should be ready to justify a credit-only question against all four factors, not just show that Section 152's reasonable-grounds threshold was met.
- Witnesses warned of their right not to answer must weigh that choice knowing factor (d) permits an adverse inference from silence.
- Litigants relying heavily on a single witness's credibility should expect factor (a) and the proportionality balance in factor (c) to weigh more heavily in favour of compelling answers to genuinely serious imputations.
- Appellate courts reviewing a trial's fairness may examine whether the trial court genuinely engaged with all four statutory factors, rather than treating the discretion as unstructured.
Key Takeaways
- The Court's discretion is structured, not open-ended: subsection (2) writes four specific considerations directly into the statute.
- Seriousness and remoteness pull in opposite directions: factors (a) and (b) both ask how much the imputation, if true, would actually affect credibility.
- Proportionality is an independent check: factor (c) can make even a serious imputation improper if the witness's evidence barely matters to the case.
- Silence is not risk-free: factor (d) lets the Court draw an adverse inference from a witness's refusal to answer, even after being warned they need not.
- It is the hub of a four-provision sequence: Sections 150 through 153 together govern relevant questions, non-relevant credit questions, the grounds needed to ask them, and the consequence of asking without grounds.
Conclusion
Section 151 tackles one of the genuinely hard judgment calls in trial practice by giving the Court an unusually explicit framework rather than leaving the decision to instinct alone. Weighing seriousness against remoteness, and proportionality against the value of the witness's actual evidence, the section tries to ensure that only questions that would meaningfully inform the Court's view of credibility get compelled answers — while still leaving a witness's silence open to fair scrutiny if they choose not to respond.
For counsel and witnesses alike, the practical lesson is to think through all four factors before assuming a credit-only question will, or will not, have to be answered — the outcome in any given case depends on how those factors weigh against each other, not on any single, mechanical rule.