Grandparent DNA Test
Also known as: Grandparentage DNA Test, Grandparentage Verification, Generational Relationship Test
Grandparent DNA Test test available at DNA Labs India for ₹24,000. Uses PCR-based STR analysis, Capillary electrophoresis on Blood or Buccal Swab samples. Results in Results are typically available within 5-7 business days after the sample reaches the laboratory. An expedited service (24-48 hours) is available at an additional cost.. Free home collection in 300+ cities across India.
🩺 Medically Reviewed By
Dr Pasupathy Arumugam
Consultant Pathologist · Reg: 21521
Last reviewed: September 7, 2026
Overview
The purpose of the Grandparent DNA Test is to establish a biological link between a grandparent and a grandchild. This can be needed for legal reasons (e.g., custody, inheritance), immigration applications, or personal peace of mind. The test helps clarify family relationships and can provide important medical history information.
- Test Code
- 6259
- CPT Code
- 81479
- ICD Code
- Z13.89
- Price
- ₹24,000
- Sample Type
- Blood or Buccal Swab
- Result Time
- Results are typically available within 5-7 business days after the sample reaches the laboratory. An expedited service (24-48 hours) is available at an additional cost.
- Fasting Required
- No
- Method
- PCR-based STR analysis, Capillary electrophoresis
Sample Collection
No special preparation is required. You can eat, drink, and take medications as usual.
Method: Blood draw or buccal swab by trained phlebotomist
Laboratory Analysis
A trained phlebotomist will collect a blood sample or buccal swab. The procedure is quick and painless.
Report Delivery
No restrictions. You can resume normal activities immediately.
Timeline: Results are typically available within 5-7 business days after the sample reaches the laboratory. An expedited service (24-48 hours) is available at an additional cost.
Patient Instructions
About This Test
Who Should Get This Test
The purpose of the Grandparent DNA Test is to establish a biological link between a grandparent and a grandchild. This can be needed for legal reasons (e.g., custody, inheritance), immigration applications, or personal peace of mind. The test helps clarify family relationships and can provide important medical history information.
How to Prepare
- For buccal swab: do not eat, drink, or smoke 30 minutes before collection
- For blood sample: no fasting required
- Ensure the child is comfortable and calm during collection
Doctor's Notes
Reviewed by Dr Pasupathy Arumugam — MBBS, MD (Pathology) · Reg. No. 21521
"Grandparent DNA testing is a reliable method to establish biological relationships when the alleged parent is unavailable. The test uses highly polymorphic STR markers to provide conclusive results with a probability of 99.9% for inclusion and 100% for exclusion."
Last medically reviewed: September 7, 2026
Test Parameters & Specifications
Sample Stability
- Hemolyzed blood samples
- Insufficient quantity
- Contaminated swabs
- Samples not labeled correctly
Understanding Your Results
Probability ≥99.9%
The grandparent is very likely the biological grandparent. This supports the relationship.
Probability <0.01%
The grandparent is excluded as the biological grandparent. The relationship is not supported.
Inconclusive
In rare cases, additional testing may be needed. Our genetic counselors will guide you.
If you have questions about the results or need assistance with legal or immigration processes, consult our genetic counselors or your referring physician.
Limitations
- ⚠If both grandparents are unavailable, testing may not be conclusive
- ⚠In rare cases of genetic mutations, results may be inconclusive
- ⚠Test cannot determine the exact relationship (e.g., grandparent vs. uncle) without additional testing
Risks & Considerations
- ●Minimal risk of bruising or infection at the blood draw site
- ●No risk for buccal swab collection
Interfering Factors
- ●Contamination of samples if not collected properly
- ●Recent blood transfusion (within 2 weeks) may affect blood samples
- ●Bone marrow transplant can alter DNA results
- ●Insufficient sample quantity
Compare With Similar Tests
| Test | Grandparent DNA Test | Paternity DNA Test | Maternity DNA Test | Sibling DNA Test |
|---|---|---|---|---|
| Comparison | Grandparent DNA Test |
Frequently Asked Questions
Is fasting required before the Grandparent DNA Test?
How accurate is the Grandparent DNA Test?
How do I book free home sample collection?
Can the test be performed if one grandparent is unavailable or deceased?
Is the test painful for infants or young children?
Will my results remain confidential?
How long does it take to get the report after home collection?
What if I need the report urgently?
What is the cost of the Grandparent DNA Test?
What sample types are accepted?
Can the test be used for legal purposes?
Are there any age restrictions for the test?
Related Tests
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.
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.
Book Your Test
Enter your details and we'll connect you within 15 minutes.