Supreme Court Restricts DNA Paternity Tests, Upholds Child's Legitimacy and Privacy

New Delhi – In a landmark judgment reinforcing the sanctity of family relationships and individual privacy, the Supreme Court of India has ruled that DNA testing to determine paternity cannot be ordered as a matter of course, particularly when it threatens to illegitimise a child born within wedlock. The Court set aside a Madras High Court order, holding that the "conclusive proof" of legitimacy under Section 112 of the Indian Evidence Act is a substantive safeguard that cannot be displaced by mere suspicion or for "fishing inquiries" in criminal investigations.

The bench, comprising Justice Prashant Kumar Mishra and Justice Vipul M Pancholi, delivered a trenchant analysis of the intersection between statutory presumptions, fundamental rights, and the use of scientific evidence. The ruling in R. RAJENDRAN VERSUS KAMAR NISHA AND OTHERS establishes stringent new guardrails for trial and appellate courts, demanding that such intrusive tests be reserved for cases of "eminent need" where justice cannot otherwise be served.

Background: A Criminal Complaint and a Compelled Test

The case originated from a criminal complaint filed by a woman who claimed to have had an extramarital relationship with the appellant, a doctor, while she was still married to another man. She alleged that her child, born in 2007, was fathered by the appellant. Following her public allegations on television, an FIR was registered against the doctor for cheating and harassment under Sections 417 and 420 of the IPC and the Tamil Nadu Women Harassment Act.

During the investigation, the police sought to compel the appellant, the complainant, and the child to undergo DNA testing. When the doctor refused, the matter reached the Madras High Court, which directed him to submit to the test. A Division Bench upheld this order, prompting the doctor to appeal to the Supreme Court.

The Bulwark of Legitimacy: Section 112 of the Evidence Act

The Supreme Court's judgment, authored by Justice Mishra, pivoted on a meticulous examination of Section 112 of the Indian Evidence Act. This provision establishes a conclusive presumption that a child born during the continuance of a valid marriage is legitimate. The bench described this section as a legislative policy of "profound significance."

"Section 112 embodies a legislative policy of profound significance, it stands as a bulwark against the casual illegitimization of children on the strength of unsubstantiated allegations or mere suspicion. The presumption it creates is not a procedural formality to be lightly displaced but a substantive safeguard intended to protect the dignity, social legitimacy, and the legal rights of children born within wedlock,” the Court observed.

The judgment clarified that this presumption is not absolute but can only be rebutted by establishing, through "strong and unambiguous evidence," that the parties to the marriage had "no access" to each other at any time the child could have been conceived. The burden of proving non-access lies heavily on the party asserting illegitimacy. In the present case, the Court noted that the complainant’s husband was listed as the father on the child's birth and school records, and no credible evidence was presented to demonstrate his non-access to his wife during the conception period.

Balancing Act: The Two-Fold Test for DNA Profiling

Reaffirming the principles laid down in Ivan Rathinam vs. Milan Joseph (2025), the Court reiterated the two-fold test that must be satisfied before a DNA test can be lawfully ordered:

• Insufficiency of Evidence: There must be a prima facie case, but the available evidence must be insufficient to resolve the dispute.
• Balance of Interests: The court must conduct a balancing exercise, weighing the interests of the parties involved. This includes the child's right not to have their legitimacy questioned, the privacy rights of all individuals, and the interest of justice.

The Supreme Court found that the High Court had failed on both counts. The presumption of legitimacy under Section 112 remained firmly intact, and the balance of interests weighed decisively against ordering the test.

"In the present case, this balance weighs decisively against ordering DNA testing. Such a direction would constitute a significant intrusion into the privacy and dignity of both, the appellant and the child, implicating the fundamental right to privacy guaranteed under Article 21 of the Constitution of India," the judgment stated.

Right to Privacy: A Constitutional Barrier to Intrusive Testing

The Court delivered a powerful defense of the right to privacy under Article 21, framing compelled DNA testing as a "grave intrusion" upon personal liberty and bodily autonomy. It held that such an encroachment must satisfy the threefold constitutional test of legality, a legitimate state aim, and proportionality.

Significantly, the bench clarified that one person's consent does not nullify the privacy rights of others. The mother’s willingness to undergo the test and subject her child to it did not waive the appellant's right to refuse or, crucially, the privacy rights of the child. The Court noted that the child, now a major, was not a party to the proceedings, and her dignity could not be compromised to aid a criminal probe where her paternity was merely a "collateral factor."

Misapplication of CrPC in Criminal Investigations

The Supreme Court sharply criticized the High Court's reliance on Sections 53 and 53A of the Code of Criminal Procedure (CrPC), which permit the medical examination of an accused. The bench ruled that these provisions were misconstrued, as they are intended for cases where a medical examination can directly yield evidence related to the commission of the alleged offense (e.g., identifying injuries or collecting biological samples in a sexual assault case).

The Court held that the offenses of cheating and harassment did not require proof of paternity for investigation or adjudication. Therefore, compelling a DNA test lacked the necessary nexus to the crime itself.

"A direction for DNA testing must have a direct and demonstrable nexus with the offences under investigation. In the absence of such nexus, compelling a person to undergo DNA profiling, amounts to unwarranted intrusion into bodily autonomy and privacy, contrary to the safeguards implicit in Articles 20(3) and 21 of Constitution of India," the Court authoritatively stated.

No Adverse Inference for Refusal

The respondent had argued that an adverse inference should be drawn from the appellant's refusal to undergo the DNA test. The Supreme Court rejected this contention, citing its earlier decision in Aparna Ajinkya Firodia v. Ajinkya Arun Firodia (2023). It held that an adverse inference can only be considered after a court has lawfully determined that a DNA test is necessary and has ordered it. A party cannot preemptively demand an adverse inference to justify the test itself.

Conclusion: A Rebuke to Speculative Investigations

In allowing the appeal, the Supreme Court concluded that the High Court's direction was based on a "fundamental misapprehension of both statutory framework and constitutional safeguards." The ruling serves as a strong cautionary message to courts and investigative agencies against the speculative use of scientific tools. It firmly places the dignity of the child and the privacy of the individual at the forefront, ensuring that the powerful presumption of legitimacy is not eroded by unfounded accusations or investigative overreach. This judgment will undoubtedly guide the jurisprudence on paternity disputes and the evidentiary use of DNA profiling for years to come.