The distinction between void and voidable Hindu marriages is foundational to understanding matrimonial law under the Hindu Marriage Act. A void marriage is one that is invalid from its inception—it never creates legal rights or obligations, and either party (or even third parties in certain contexts) may challenge it at any time without needing court permission for standing. Conversely, a voidable marriage is initially valid and binding but can be set aside at the election of the injured party within prescribed circumstances and timeframes. The statutory framework recognizes certain conditions as so fundamentally incompatible with the institution of marriage that their presence renders the union void ab initio: these include the existence of a living spouse at the time of marriage (bigamy), marriage within prohibited degrees of relationship, and marriage in the ascending or descending line. The law presumes that these violations strike at the very capacity of the parties to marry and cannot be cured by subsequent events or the passage of time. The voidable marriage doctrine, by contrast, contemplates situations where both parties technically possessed the capacity to marry and no legal barrier existed, yet one party's consent was vitiated or circumstances revealed after marriage were so serious that the innocent party deserves a remedy. The grounds for rendering a marriage voidable include non-consummation due to the impotence of the respondent (a condition existing at the time of marriage and incurable), where the petitioner did not know of and did not consent to this impotence; the mental unsoundness of the respondent at the time of marriage, provided the petitioner was unaware of this condition; procurement of consent through force or fraud—meaning duress or material misrepresentation relating to matters essential to marital consent; and the respondent's pregnancy at the time of marriage by a person other than the petitioner, unknown to the petitioner. These grounds operate differently from void marriage conditions because they require proof of a subjective element—lack of knowledge, non-consent, or the fact that the condition was not disclosed. The law thus distinguishes between marriages that should never have been contracted (void) and marriages that, while initially valid, are allowed to be dissolved because one party was deceived or circumstances fundamentally undermined the marital bargain (voidable). The consequences flowing from void versus voidable marriages differ substantially in legal effect and procedural remedy. A void marriage requires no court order to dissolve it; either party may simply treat it as non-existent and marry another without formality, though courts increasingly require declaratory relief for certainty regarding property, succession, and legitimacy of children. When a void marriage is declared, no maintenance, alimony, or matrimonial property adjustments typically flow to either party, though the courts have developed equitable remedies to protect innocent parties and children born of the void union. A voidable marriage, by contrast, subsists until formally set aside by court decree; the petitioner must file a suit within the prescribed period and prove the grounds alleged. Critically, the right to petition becomes barred if the petitioner, with knowledge of the ground, expressly or by conduct affirmed the marriage; if the court is satisfied that the petitioner condoned the grounds; or if the suit is not brought within a reasonable time. Once a voidable marriage is annulled by court order, the parties are freed from marital obligations prospectively, though the court retains discretion to award maintenance or settle property in the same manner as in divorce. The burden of proof lies on the petitioner to establish the ground; mere allegation is insufficient. Defences available include the respondent's denial of the alleged ground, proof that the petitioner knew of the defect, evidence of affirmation or condonation, delay in seeking relief, or demonstration that the alleged ground did not exist at the time of marriage. This doctrine operates within the broader framework of Hindu matrimonial law and intersects significantly with the law of nullity in other personal laws. Unlike the concept of divorce, which dissolves a valid marriage on grounds arising after marriage, annulment addresses defects in the formation of the marriage itself or defects known but concealed at inception. The distinction matters for purposes of legitimacy of children, succession rights, and the intestate claims of the surviving spouse. The law also recognizes that a void marriage may produce legitimate children if either parent believed in good faith that the marriage was valid, thus protecting innocent offspring from the stigma and disability of illegitimacy. The Hindu Succession Act extends succession rights to children born of void marriages under the doctrine of putative marriage. Voidable marriages, being initially valid, create full marital status until annulled; children born during a voidable marriage are legitimate even if the marriage is later annulled, provided conception occurred during the marriage. This framework reflects the law's concern with protecting vulnerable parties—the innocent spouse and children—while maintaining the sanctity and certainty of the marital institution. CLAT examiners frequently employ traps in testing this distinction. A common distortion presents a fact pattern where both parties knew of a defect (such as an undisclosed prior marriage or mental illness) yet still married; examiners may then ask whether the marriage is voidable, expecting candidates to forget that knowledge or affirmation bars the remedy. Another frequent twist involves impotence: examiners state that the impotent party seeks annulment, testing whether candidates incorrectly think the impotent respondent can petition. The law limits the right to petition for impotence to the other spouse only. Examiners also blur the distinction between void and voidable by presenting a delayed suit for annulment on a voidable ground after many years of cohabitation and asking whether time bars apply differently than to divorce—a trap because voidable grounds have different limitation and condonation rules than divorce grounds. Another sophistication involves mixing prohibited relationship violations with other defects: a question might describe a marriage within prohibited degrees but also mention fraud, then ask whether the marriage is void or voidable, testing whether candidates understand that the void nature (prohibited degree) prevails regardless of additional defects. Finally, examiners sometimes import succession law concepts, asking about legitimacy of children or inheritance rights in the same question, creating confusion about which doctrine applies. Candidates must remember that void marriages produce illegitimate children unless the putative marriage doctrine applies, while voidable marriages produce legitimate children until annulled.