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DNA Labs India

Legal Paternity DNA Test

DNA Labs India | ISO 9001:2015 Certified

Legal Paternity DNA Test

Also known as: Court-Admissible Paternity Test, Legal DNA Test for Paternity, Chain of Custody DNA Test

Legal Paternity DNA Test test available at DNA Labs India for ₹26,000. Uses STR Analysis (28 autosomal loci + Amelogenin), Duplicate testing on Buccal swab or blood on FTA card samples. Results in Results are typically available within 7-10 business days after the sample reaches the laboratory. Express reporting (5 days) is available on request for an additional fee.. Free home collection in 300+ cities across India.

Molecular🏠 Home Collection

✍️ Written By

🩺 Medically Reviewed By

Dr Pasupathy Arumugam

Dr Pasupathy Arumugam

Consultant Pathologist · Reg: 21521

Last reviewed: September 7, 2026

Overview

The purpose of a Legal Paternity DNA Test is to provide scientifically conclusive evidence of biological fatherhood that is admissible in a court of law. It is used to resolve legal disputes involving inheritance, child custody, maintenance, immigration, and birth certificate corrections. The test follows a strict chain of custody to ensure that the samples are collected, transported, and analyzed without any tampering, thereby guaranteeing the integrity of the results.

Test Code
6291
CPT Code
81265
ICD Code
Z31.5
Price
₹26,000
Sample Type
Buccal swab or blood on FTA card
Result Time
Results are typically available within 7-10 business days after the sample reaches the laboratory. Express reporting (5 days) is available on request for an additional fee.
Fasting Required
No
Method
STR Analysis (28 autosomal loci + Amelogenin), Duplicate testing
Step 1

Sample Collection

No special preparation is required. Participants should carry original government ID and a recent passport-size photograph. Please inform the collector of any medical conditions or recent blood transfusions.

Method: Buccal swab (non-invasive)

Step 2

Laboratory Analysis

A neutral third-party collector will verify identities, witness the sample collection, and seal the kit in a tamper-evident bag. Buccal swabs are taken by rubbing a sterile swab on the inside of the cheek.

Step 3

Report Delivery

The sealed kit is sent to the laboratory with a unique barcode. Results are typically available within 7-10 business days. You will be notified via email/WhatsApp when the report is ready.

Timeline: Results are typically available within 7-10 business days after the sample reaches the laboratory. Express reporting (5 days) is available on request for an additional fee.

Patient Instructions

1
Before the Test:No special preparation is required. However, you must bring the required documents and ensure all participants are available for sample collection.
2
During the Test:The sample collection is quick and painless. A buccal swab is rubbed on the inside of the cheek for a few seconds. The collector will verify identities and witness the process.
3
After the Test:You can resume normal activities immediately. The sample is sent to the lab for analysis. You will receive the report via email/WhatsApp within 7-10 business days.

About This Test

Who Should Get This Test

The purpose of a Legal Paternity DNA Test is to provide scientifically conclusive evidence of biological fatherhood that is admissible in a court of law. It is used to resolve legal disputes involving inheritance, child custody, maintenance, immigration, and birth certificate corrections. The test follows a strict chain of custody to ensure that the samples are collected, transported, and analyzed without any tampering, thereby guaranteeing the integrity of the results.

How to Prepare

  • Do not eat, drink, or smoke for at least 30 minutes before sample collection.
  • Bring original government ID (Aadhaar, Voter ID, Passport, or Driving License) and a self-attested copy.
  • Bring a recent passport-size photograph.
  • Ensure all participants are present at the time of collection.
  • The collector will explain the process and answer any questions.

Doctor's Notes

Reviewed by — MBBS, MD (Pathology) · Reg. No. 21521

"Legal paternity testing requires strict adherence to chain of custody to ensure evidentiary validity. Our laboratory follows ISO 17025 standards and all reports are reviewed by a qualified geneticist and legal expert."

Last medically reviewed: September 7, 2026

Test Parameters & Specifications

Sample TypeBuccal swab or blood on FTA card
Sample Volume2 buccal swabs per participant
ContainerSterile forensic swab kit
Collection MethodBuccal swab (non-invasive)

Sample Stability

Room temperature
Refrigerated (2-8°C)
Frozen (-20°C)
Sample Rejection Criteria:
  • Sample without proper chain of custody documentation
  • Sample with broken tamper-evident seal
  • Insufficient sample quantity
  • Sample contaminated or degraded
  • Missing identity verification or witness signature

Understanding Your Results

The legal paternity DNA test report includes a statistical analysis of the DNA profiles. The Combined Paternity Index (CPI) and Probability of Paternity are calculated based on the genetic markers. A probability of 99.99% or higher is considered conclusive for inclusion, while a probability of 0% (or exclusion) is reported when the alleged father is not the biological father.
📊

Inclusion

The alleged father is the biological father with a probability of paternity >99.99%.

📊

Exclusion

The alleged father is not the biological father. The probability of paternity is 0%.

⚠️ When to Consult a Doctor:

If you have been ordered by a court to undergo a paternity test, or if you need legal proof of paternity for inheritance, custody, or immigration purposes, consult with a legal expert or your physician to understand the requirements and process.

Limitations

  • ⚠Test cannot be performed if chain of custody is broken
  • ⚠Results are valid only for the tested individuals
  • ⚠Legal test requires mandatory identity verification and witness
  • ⚠Not valid for peace of mind purposes

Risks & Considerations

  • ●No significant risks are associated with buccal swab collection. It is non-invasive and painless.

Interfering Factors

  • ●Contamination of samples if collection protocol is not followed
  • ●Improper labeling or documentation
  • ●Use of non-forensic collection kits
  • ●Insufficient sample quantity
  • ●Recent blood transfusion (for blood samples)

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Frequently Asked Questions

Can I use a home DNA test kit for a legal court case?
No. Home kits lack a verified chain of custody, third-party witness, and identity verification. Indian courts strictly require a court-admissible DNA test with forensic sealing and neutral sample collection. Only legal tests (Chain of Custody) are accepted in evidence.
What documents are required for a Legal DNA Test in India?
Each participant must provide a government-issued ID (Aadhaar, Voter ID, Passport, or Driving License) and a recent photograph. Original IDs are shown to the collector; self-attested copies are retained in the chain-of-custody file.
Is the DNA Labs India report valid in Indian Courts?
Yes. DNA Labs India follows ISO-recommended protocols, STR profiling with duplicate testing, and chain-of-custody documentation. Our legal reports have been accepted in various district courts, family courts, and high courts across India. The report includes a forensic certificate, signature of molecular biologist, and advocate’s compliance review.
How do I book a legal DNA test via WhatsApp?
Simply message 09395142800 on WhatsApp with your location and requirement “Legal Paternity Test”. Our coordinator will share the document checklist, arrange a third-party collector, and schedule sample collection at your home or nearest centre.
What is the typical turnaround time for a court-admissible DNA report?
Results are delivered within 7–10 business days after sample receipt at the laboratory. Express legal reporting (5 days) is available upon request with additional forensic rush processing.
Is the test painful?
No. The sample is collected using a buccal swab, which is a simple, non-invasive procedure. You may feel a slight rubbing sensation on the inside of your cheek, but it is not painful.
Can the test be done for a child?
Yes, the legal paternity test can be performed on individuals of any age, including infants and children. For minors, a parent or legal guardian must provide consent and proper documentation.
What is the cost of the legal paternity test?
The all-inclusive cost is ?26,000, which covers sample collection, chain of custody, testing, and the court-admissible report. There are no hidden charges.
Is home sample collection available?
Yes, we offer free home sample collection in 300+ cities across India. A neutral third-party collector will visit your location to collect samples, ensuring the chain of custody is maintained.
What is the accuracy of the legal paternity test?
The test has an accuracy of >99.99% for inclusion and 100% for exclusion, based on strict forensic thresholds and duplicate testing.
Can the report be used for immigration purposes?
Yes, the legal paternity test report is accepted for immigration and visa applications, including FRRO requirements, as it provides court-admissible proof of biological relationship.
How is the report delivered?
The report is delivered digitally via email and WhatsApp, and a physical copy can be provided upon request. The report includes a forensic certificate and advocate’s review.
Worried about the process? Our certified phlebotomists collect thousands of samples every month across India. The process takes under 5 minutes and is virtually painless. Questions? Message us on WhatsApp — we're here 7 days a week.

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For Hospitals & Clinics

Reference Laboratory Services

We serve as a reference laboratory for hospitals and clinics across India. Send samples from your facility with same-day pickup, priority processing, and results delivered through our online portal. Competitive institutional pricing available.

LIMS Integration

Your Data Privacy

Your medical data is protected under Indian law.

✓ Stored in India: All patient records are stored on servers located in India. No data is transferred outside the country.

✓ DPDP Act Compliant: Under the Digital Personal Data Protection Act 2023, you can request deletion of your records at any time by contacting support.

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