INTRODUCTION
Advances in forensic science have transformed the evidentiary landscape of modern adjudication. DNA testing, in particular, has emerged as one of the most reliable scientific methods for determining biological parentage. However, the legal relevance of such scientific certainty is neither absolute nor value-neutral. In disputes involving paternity, legitimacy, and maintenance, the uncritical application of DNA evidence raises serious constitutional, ethical, and social concerns.
Indian family law has historically prioritized legitimacy over biological truth. This preference reflects a conscious policy choice aimed at protecting children from the stigma of illegitimacy and ensuring social stability. Section 112 of the Indian Evidence Act, 1872 embodies this approach by creating a strong presumption that a child born during the subsistence of a valid marriage is the legitimate child of the husband.
With the advancement of DNA technology, courts have increasingly been urged to substitute legal presumptions with scientific evidence. Indian courts, however, have consistently resisted this approach. Judicial reasoning demonstrates an acute awareness that legal parentage carries social, emotional, and constitutional dimensions that cannot be resolved solely through laboratory findings. The consequences of displacing legitimacy particularly for the child extend far beyond the immediate dispute between estranged spouses.
STATUTORY PRESUMPTION OF LEGITIMACY
A. Section 112 of the Indian Evidence Act, 1872
Section 112 provides that a child born during the continuance of a valid marriage shall be conclusively presumed to be the legitimate child of the husband unless it is proved that the spouses had no access to each other at the time when the child could have been begotten. Courts have consistently interpreted “non-access” to mean the impossibility of sexual relations, not mere separation, marital discord, or suspicion of infidelity.
The strength of this presumption reflects a legislative intent to shield children from the social and psychological consequences associated with illegitimacy. By restricting rebuttal to strict proof of non-access, the law prevents speculative or belated challenges that could destabilize a child’s legal identity.
B. Bharatiya Sakshya Adhiniyam, 2023
Section 116 of the Bharatiya Sakshya Adhiniyam, 2023 substantially reenacts Section 112 of the Evidence Act. Parliament’s decision to retain this presumption despite significant advances in forensic science indicates clear legislative continuity. DNA testing is not intended to displace this foundational principle of family law.
SUPREME COURT JURISPRUDENCE ON DNA TESTING
The Supreme Court of India has repeatedly cautioned against the routine use of DNA testing in legitimacy disputes.
In Goutam Kundu v. State of West Bengal, the Court held that blood or DNA tests cannot be ordered as a matter of course and that courts must consider the impact of such tests on the child and the family.1 This principle was reaffirmed in Banarsi Dass v. Teeku Dutta, where the Court emphasised that Section 112 cannot be diluted by speculative scientific inquiries.2
In Nandlal Wasudeo Badwaik v. Lata Nandlal Badwaik, the Court acknowledged the reliability of DNA testing but clarified that such evidence must operate within the statutory framework of Section 112.3 The judgment did not elevate DNA evidence above the presumption of legitimacy; rather, it recognised its relevance only where non-access is independently established.
These decisions collectively establish that DNA testing is an exception, not the norm, in paternity and legitimacy disputes.
HIGH COURT JURISPRUDENCE: A CHILD-CENTRIC APPROACH
A. Madras High Court
In ABC v. XYZ, the Madras High Court refused to permit a DNA test sought by a husband in maintenance proceedings to contest paternity.4 The Court held that the issue must be analysed through the prism of the child and not the parents. It observed that a child cannot be used as a means to establish allegations of adultery and that ordering a DNA test would infringe the child’s right to identity, dignity, and privacy under Article 21 of the Constitution.
B. Rajasthan High Court
Similarly, the Rajasthan High Court in Deepak Soni v. Anamika held that DNA paternity tests should be ordered only in rare and exceptional circumstances.5 The Court emphasised that matrimonial disputes cannot be allowed to compromise the mental and psychological well-being of a child and reaffirmed the primacy of the presumption under Section 112.
SUPREME COURT CONSOLIDATION: IVAN RATHINAM V. MILAN JOSEPH
In Ivan Rathinam v. Milan Joseph, the Supreme Court provided authoritative clarity on the relationship between legitimacy and paternity.6 The Court held that legitimacy determines paternity under Section 112 until rebutted by strict proof of non-access. It rejected the argument that paternity could be independently adjudicated without disturbing the presumption of legitimacy.
The Court further held that compelling DNA tests based on allegations of adultery would disproportionately infringe the right to privacy and dignity under Article 21. By applying the principle of res judicata, the Court also prevented repeated challenges to settled legitimacy disputes, reinforcing legal certainty.
CONSTITUTIONAL DIMENSIONS
Following K.S. Puttaswamy v. Union of India, bodily integrity, decisional autonomy, and dignity form integral components of the right to privacy under Article 21.7 DNA testing intrudes into the most intimate domains of personal life and family relationships, warranting strict judicial scrutiny.
Where such intrusion threatens to stigmatise a child or destabilise their legal identity, courts have rightly prioritised constitutional values over forensic certainty.
CONCLUSION
Indian courts have consistently resisted the unrestrained application of DNA testing in legitimacy and paternity disputes. While recognising the scientific reliability of DNA evidence, the judiciary has affirmed that legal parentage cannot be reduced to biological connection alone. Section 112 of the Indian Evidence Act, reaffirmed under the Bharatiya Sakshya Adhiniyam, functions as a child-protective doctrine grounded in constitutional values.
By insisting on strict proof of non-access and adopting a child-centric approach, courts have ensured that DNA testing does not become a shortcut for proving adultery or evading parental responsibility. Indian jurisprudence thus maintains a principled balance between science and law, ensuring that forensic advancements serve justice without eroding dignity, privacy, or the sanctity of childhood.
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Footnotes
1. Goutam Kundu v. State of W. Bengal, (1993) 3 S.C.C. 418 (India).
2. Banarsi Dass v. Teeku Dutta, (2005) 4 S.C.C. 449 (India).
3. Nandlal Wasudeo Badwaik v. Lata Nandlal Badwaik, (2014) 2 S.C.C. 576 (India).
4. ABC v. XYZ, Crl. R.C. (MD) No. 842 of 2025 (Madras High Ct.) (India).
5. Deepak Soni v. Anamika, 2023 SCC OnLine Raj 16587 (India).
6. Ivan Rathinam v. Milan Joseph, Neutral Citation No. 2025 INSC 115 (India).
7. K.S. Puttaswamy v. Union of India, (2017) 10 S.C.C. 1 (India).