Sections 12 and 13 of the Bharatiya Sakshya Adhiniyam, 2023 (BSA) — re-enacting Sections 14 and 15 of the Indian Evidence Act, 1872 (IEA) — admit as relevant facts that show the existence of any state of mind, body or bodily feeling, and facts bearing on the question whether an act was accidental or intentional. The two provisions together carry most of the law's machinery for proving intention, knowledge, good faith, negligence, ill-will, motive and the absence of accident — the mental and physical conditions that, in case after case, separate guilt from innocence and liability from immunity.
The chapter is therefore one of the most exam-tested in the relevancy syllabus. Mens rea and similar doctrines of mental element flow through these sections; civil questions of good faith, intention to defraud and negligence flow through them too. The student who masters the structure of Sections 12 and 13 BSA has mastered a large fraction of the practical law of evidence on mental and physical states.
Concept — admitting facts that show inner states
Inner states cannot be observed directly. They must be inferred from outward facts. The Adhiniyam, faithful to its rationalist scheme, refuses to admit a witness's bare opinion about another person's state of mind; instead, it admits the outward facts from which the state of mind can be inferred. Section 12 BSA admits facts showing the existence of intention, knowledge, good faith, negligence, rashness, ill-will or goodwill towards a particular person. Section 13 BSA admits facts bearing on the question whether the act was accidental or intentional, especially through evidence of similar facts in a series of similar occurrences.
The provisions are linked to the broader scheme of the relevancy chapter. The motive that prompted the act is admitted under Section 6 BSA (previously Section 8 IEA); the state of mind itself is admitted under Section 12 BSA; the absence of accident is admitted under Section 13 BSA. Each provision opens a distinct door, and the student must be able to identify which provision opens the door for the particular fact in front of the court. The chapter on relevancy of facts under Section 3 BSA develops the broader logic of these enumerated channels.
Section 12 BSA — facts showing state of mind, body or bodily feeling
Section 12 BSA (previously Section 14 IEA) admits as relevant facts showing the existence of any state of mind — intention, knowledge, good faith, negligence, rashness, ill-will or goodwill towards any particular person — when the existence of such state of mind is in issue or relevant. The section also admits facts showing the existence of any state of body or bodily feeling, when the existence of such state of body or bodily feeling is in issue or relevant.
The most important condition is the requirement of specificity. A fact relevant as showing the existence of a relevant state of mind must show that the state of mind exists, not generally, but in reference to the particular matter in question. Evidence of a general bad temper is not relevant; evidence of ill-will towards the particular person whose injury is in issue is relevant. The section admits the latter and excludes the former.
The Supreme Court in State of Karnataka v. Muralidhar, AIR 2009 SC 1621, applied the principle to a case of negligence; the Bombay High Court in Bromley v. Great Indian Peninsular Railway, ILR 24 Bom 1, applied it to a case of rashness. In each case the court admitted only the facts that bore on the particular state of mind in issue, and excluded general character evidence.
How states of mind are proved — the three channels
States of mind may be proved through three channels: by the person having the state of mind, by another person, or by circumstantial evidence. The Supreme Court in State of Bombay v. Purushottam Jog Naik, AIR 1952 SC 317, recognised the first two channels; the Privy Council in Srinivas Mall Bairoliya v. Emperor, AIR 1947 PC 135, applied the third.
The first channel — proof by the person having the state of mind — is a statement by the person himself about his own state of mind. The statement is admissible because the person is the natural witness to his own mental condition. The statement must, however, satisfy the rules of admission and confession; it cannot be a custodial statement to a police officer if the bars of Sections 22 to 24 BSA apply. The chapter on admissions under Sections 15 to 23 BSA develops this point.
The second channel — proof by another person — is a statement by another witness about the first person's state of mind. The witness can speak only to the facts on which an inference of the state of mind may be drawn; he cannot give his opinion of the state of mind itself. As the law has long recognised, a witness may speak of the conduct, gestures, expressions and words of the person whose state of mind is in issue, leaving the inference to the court.
The third channel — circumstantial evidence — is the most heavily used in practice. The state of mind is inferred from the conduct of the person, from his dealings with the matter in question, from his prior and subsequent attendant circumstances. The Supreme Court in State of Rajasthan v. Shobha Ram, 2013 (81) ACC 466 (SC), held that the state of mind of an accused can be inferred objectively from his conduct displayed in the course of the offence and from prior and subsequent attendant circumstances.
Knowledge as a special instance
Where the knowledge of a person is material, evidence is admitted to prove facts that happened before or after the main transaction even though there is no direct or apparent connection with such transaction, because they have a direct bearing on the question of knowledge. The Supreme Court in Mohmed Inayatullah v. State of Maharashtra, AIR 1976 SC 483, applied the principle to the knowledge of an accused that goods in his possession were stolen, holding that knowledge could be proved by his possession of other stolen articles.
Knowledge that a coin delivered by an accused person is counterfeit may be proved by his possession of other counterfeit coins as well as by his previous conviction for delivering a counterfeit coin. Knowledge of an acceptor of a bill of exchange that the name of the payee is fictitious may be proved by the fact that he had accepted other bills in the same manner. Knowledge of a defendant that his dog was vicious may be proved by the fact that the dog had bitten others. Each is a paradigm Section 12 BSA case.
In ordinary cases, the mere fact that opened letters were found in the possession of a party will imply his knowledge of their contents. There is no presumption that everyone knows the law — a proposition restated in Evans v. Bartlam, [1937] AC 473, [1937] All ER 646 — but knowledge of fact may be readily inferred from the surrounding circumstances under Section 12 BSA.
Intention — proof through conduct
Facts showing intention are relevant when the existence of intention is relevant. Intention being a state of mind cannot be directly proved as a fact; it can only be inferred from other facts that are proved. The Privy Council in Sinnasamy Selvanayagam v. King, [1950] UKPC 25, articulated the proposition in its classical form. Conduct is the best proof of intention, as the Madras decision in Khatrulla v. Seth Dhanrupmal, AIR 1925 Nag 82, recognised. Secrecy is evidence of fraudulent intention, as the Calcutta decision in Joshua v. Alliance Bank, ILR 22 Cal 185, held; silence may be evidence of fraud as well, on the authority of Joy Chandra v. Sreenath, ILR 32 Cal 357.
The Supreme Court has applied the principle in case after case. In State of Rajasthan v. Shobha Ram, the Court held that when a person opens fire from a point-blank range at another, it would be ludicrous for any prudent man to infer that the assailant had no intention of causing death. The same proposition was endorsed in Ishaq Ahamed @ Aslam v. State, 2016 (1) MLJ (Crl) 385. Often the intent is inferred than proved, from the very conduct of the accused — or, in the language of the illustration to Section 106 IEA, "from the character and circumstances of the act".
The rule is clear. The fact-pattern won't be.
Topic-tagged MCQs from previous-year papers and original mocks — calibrated to actual exam difficulty.
Take the Evidence Act mock →Abnormal states of mind — insanity and diminished responsibility
An abnormal state of mind, such as insanity, may itself be a fact in issue or it may be relevant to an issue of knowledge or intention. The admissibility of evidence of abnormality depends either on the substantive law or on the general principle of relevance under Section 12 BSA. In a person accused of murder who alleges that by reason of unsoundness of mind he did not know the nature of the act, the abnormal state of mind is a fact in issue under the substantive law (now Section 22 BNS, previously Section 84 IPC), and the evidence of abnormality is admissible under that head.
An abnormal state of mind short of insanity may arise where a person commits an offence under grave and sudden provocation and becomes liable only to a lesser offence under the doctrine of diminished responsibility. The decision in Ram Sundar Saha v. Kali Narain Sen, AIR 1927 Cal 889, treats abnormality of mind as a fact admissible under Section 12 BSA where it bears on intention or knowledge. Where relevant, insanity is usually the subject of expert evidence, treated in our chapter on expert and opinion evidence.
Section 13 BSA — accidental or intentional acts and similar facts
Section 13 BSA (previously Section 15 IEA) deals with the question whether an act was accidental or intentional, or done with a particular knowledge or intention. The provision admits, on this question, the fact that the act formed part of a series of similar occurrences in each of which the person doing the act was concerned. The provision is therefore the principal Indian statutory home of the doctrine of similar-fact evidence.
The doctrinal logic is straightforward. A single occurrence may be accident; a series of similar occurrences makes accident vanishingly improbable. A person who has been in a series of similar fires that benefited him by way of insurance pay-outs is unlikely to have been in any one of them by accident. A person who has accepted a series of bills with fictitious payees is unlikely to have accepted any one of them in good faith. Section 13 BSA admits evidence of the series to rebut the defence of accident.
Similar-fact evidence — exception to the rule of exclusion
The general rule of Indian evidence law excludes similar-fact evidence — that is, evidence that the accused has on previous occasions committed acts of the same kind as the act charged. The exclusion is rooted in the fear that the trier of fact will reason from past propensity to present guilt, in violation of the principle that each charge must be tried on its own evidence.
The Adhiniyam carves out two exceptions to this exclusion. First, where any state of mind or body or bodily feeling is in issue, evidence of facts showing the existence of such state of mind or body or bodily feeling is relevant under Section 12 BSA. Second, when the act of which evidence is sought to be given forms part of a series of similar occurrences, evidence of similar facts is admissible to prove intention or knowledge of a person and to rebut the defence of accident under Section 13 BSA.
The Bombay High Court in Emperor v. Wahiduddin Hamiduddin, AIR 1930 Bom 157, applied the second exception to a case of repeated fraud. The Privy Council in Noor Mohamed v. The King, AIR 1949 PC 161, treated the exception as the principal Indian counterpart of the English doctrine of similar-fact evidence. In each case, the evidence of similar acts was admitted not to prove general bad character but to rebut the specific defence of accident or to prove the specific state of mind in issue.
Abuse of similar-fact evidence — the Indian safeguard
Similar-fact evidence is potent. It is also dangerous, because it tempts the trier of fact to convict on propensity rather than on proof. The Indian courts have therefore been alert to confine its operation to the narrow grounds permitted by Sections 12 and 13 BSA. A fact relevant as showing the existence of a relevant state of mind must show that the state of mind exists, not generally, but in reference to the particular matter in question. Evidence that the accused has on previous occasions assaulted the deceased is admissible as showing his ill-will towards the particular deceased; evidence that he has on previous occasions assaulted other persons is generally not admissible, because it shows a general character and not a specific state of mind.
The same restriction governs Section 13 BSA. The series of similar occurrences must be of acts so similar in kind, in time, in surrounding circumstances, that the inference of intention or knowledge or non-accident is fairly drawn. A series of dissimilar occurrences does not engage the section. The chapter on character evidence in civil and criminal cases develops the boundary between admissible state-of-mind evidence and inadmissible character evidence.
State of body and bodily feeling
Section 12 BSA admits not only facts showing state of mind but also facts showing state of body or bodily feeling, when the existence of such state of body or bodily feeling is in issue or relevant. Where the question is whether the deceased was suffering from a particular illness at the time of the alleged poisoning, evidence of his prior symptoms is admissible under this limb. Where the question is whether the plaintiff was in pain at the time of the alleged accident, evidence of his expressions of pain immediately before and after the accident is admissible.
The provision is also engaged in personal-injury cases, in workers' compensation cases, and in matrimonial cases involving cruelty or impotence. In each such case, the state of body or bodily feeling is a fact in issue, and the surrounding facts that bear on it enter the record under Section 12 BSA.
Distinguishing Sections 12 and 13 BSA from neighbouring rules
Two distinctions are critical.
Sections 12–13 BSA versus Section 6 BSA (motive and conduct). Section 6 BSA admits motive, preparation and conduct as facts that bear logically on the fact in issue; Sections 12 and 13 BSA admit facts that show the existence of a state of mind or body. The two heads often overlap on the same evidence — a threat may be conduct under Section 6 BSA and also evidence of a hostile state of mind under Section 12 BSA — but the doctrinal grounds are different. The chapter on facts connected with the fact in issue develops the boundary.
Sections 12–13 BSA versus the character provisions in Sections 50–53 BSA. Character evidence is governed by the special rules in Sections 50 to 53 BSA. Sections 12 and 13 BSA do not admit general character; they admit only facts that show a specific state of mind. A general bad reputation is not relevant under Section 12 BSA; specific facts showing ill-will towards the particular victim are. The chapter on character when relevant works out this difference.
Civil application of Sections 12 and 13 BSA
Although the case law is dominated by criminal cases, Sections 12 and 13 BSA apply equally to civil proceedings. Good faith and bad faith are recurrent issues in fraud, defamation, breach-of-trust and conversion cases. Negligence is the central question in a tort suit. Intention to deceive is the linchpin of fraud and misrepresentation. In each civil context, the surrounding facts that bear on the relevant state of mind enter the record under Section 12 BSA, and a series of similar occurrences may rebut the defence of accident or honest mistake under Section 13 BSA.
The civil-court application is particularly important in commercial litigation, where the question of intention to defraud or knowledge of falsity is often the dispositive issue. For the burden-of-proof framework that interacts with these provisions, see our chapter on burden of proof under Sections 101 to 114, and for the rules of presumption that often determine the standard of proof in good-faith and fraud cases see our chapter on presumptions — may presume, shall presume, conclusive proof.
BSA-specific changes — minor cosmetic
The BSA reproduces Sections 14 and 15 IEA in Sections 12 and 13 BSA without substantive change. The cosmetic textual edits recorded in the official correspondence table — "coin" replaced by "currency", "carriage" replaced by "cars", "rupee" replaced by "currency" in the illustrations — do not affect doctrine. The classical authorities continue to govern the renumbered sections. For the section-by-section mapping see our IEA to BSA section-mapping table.
Common pitfalls in answer scripts
Three errors recur.
First, treating evidence of general bad character as admissible under Section 12 BSA. The provision admits only facts that show a specific state of mind in reference to the particular matter in question. General character is governed by Sections 50 to 53 BSA, on different conditions.
Second, treating any series of similar acts as admissible under Section 13 BSA. The series must be of acts sufficiently similar in kind, time and circumstances to support the inference of non-accident or particular intention. A loose series of dissimilar acts does not engage the section.
Third, conflating Section 12 BSA with Section 6 BSA on motive. Motive is a fact under Section 6 BSA; intention is a state of mind under Section 12 BSA. The two are connected — motive may evidence intention — but they are admissible on different grounds. The chapter on voluntary admissions and their evidentiary value covers the related doctrine of statements about one's own state of mind.
For the broader topic-cluster of Evidence Act and BSA notes covering relevancy, motive, conduct, conspiracy, state of mind, admissions and confessions, the chapter index links to every other unit in the syllabus.
Conclusion — outward facts proving inner states
Sections 12 and 13 BSA are the operational provisions through which inner states — intention, knowledge, good faith, negligence, ill-will, the absence of accident — are proved in Indian courts. The provisions admit outward facts from which inner states can be inferred, subject to the strict requirement of specificity. The classical authorities continue to govern the renumbered sections; the BSA changes nothing of substance. The mains aspirant who has internalised the specificity requirement and the boundary with the character provisions will not be tripped up by any state-of-mind fact-pattern, however cleverly the examiner constructs it.
Frequently asked questions
Does Section 12 BSA admit evidence of general bad character?
No. Section 12 BSA (previously Section 14 IEA) admits only facts that show a specific state of mind in reference to the particular matter in question. Evidence of general bad temper or general bad character is not relevant under the section. General character is governed by the separate rules in Sections 50 to 53 BSA, on different and stricter conditions. The most common error in answer scripts is to treat the two heads as interchangeable.
How is intention proved when the accused gives no statement?
Intention being a state of mind cannot be directly proved; it can only be inferred from other facts that are proved. The Privy Council in Sinnasamy Selvanayagam v. King, [1950] UKPC 25, articulated the principle. Conduct is the best proof of intention. The Supreme Court has held that when a person opens fire from a point-blank range at another, it would be ludicrous to infer that the assailant had no intention of causing death — the inference of intention follows from the objective conduct, even when the accused gives no statement at all.
What does Section 13 BSA add to Section 12 BSA?
Section 13 BSA (previously Section 15 IEA) deals specifically with the question whether the act was accidental or intentional, and admits the fact that the act formed part of a series of similar occurrences as evidence of intention or knowledge. Section 12 BSA admits any fact bearing on a state of mind generally; Section 13 BSA admits a particular kind of fact — the series of similar occurrences — as a special instance of that broader admissibility, directed at rebutting the defence of accident.
Is similar-fact evidence freely admissible in Indian criminal trials?
No. The general rule excludes similar-fact evidence, because of the danger that the trier of fact will reason from past propensity to present guilt. Sections 12 and 13 BSA carve out narrow exceptions: similar facts are admissible to show the existence of a relevant state of mind, and to rebut the defence of accident through evidence of a series of similar occurrences. Outside these narrow exceptions, similar-fact evidence remains inadmissible, and the courts have been alert to confine the exceptions to their statutory grounds.
How does Section 12 BSA apply to civil cases on good faith and negligence?
Section 12 BSA applies equally to civil proceedings. Good faith, bad faith, intention to deceive, knowledge of falsity, and negligence are recurrent issues in fraud, defamation, breach-of-trust, conversion and tort cases. The surrounding facts that bear on the relevant state of mind enter the record under Section 12 BSA, and a series of similar occurrences may rebut the defence of accident or honest mistake under Section 13 BSA. The civil application is particularly important in commercial litigation.