When sourcing generic medicines from India, one of the most important quality indicators is WHO-GMP (World Health Organization — Good Manufacturing Practices) certification. But how do you actually verify whether a manufacturer’s WHO-GMP certificate is genuine? This guide walks you through the process step by step, from understanding what WHO-GMP means to checking certificates against official sources.
🇮🇳 What Is WHO-GMP Certification?
WHO-GMP is a quality assurance standard issued by the World Health Organization that certifies a pharmaceutical manufacturing facility meets minimum requirements for producing safe, consistent, and effective medicines. In India, GMP compliance is enforced by the Central Drugs Standard Control Organisation (CDSCO) under the Drugs and Cosmetics Act, 1940.
India has over 10,500 WHO-GMP compliant pharmaceutical manufacturing units — the largest number of any country outside the United States. However, not all “WHO-GMP certified” claims are equally reliable. Some manufacturers display expired certificates, while others may use certificates issued by unaccredited bodies.
🔍 Step 1: Check the Certificate’s Issuing Authority
The first thing to verify is who issued the certificate. A legitimate WHO-GMP certificate must be issued by a recognized regulatory authority. In India, the following bodies are authorized to issue GMP certificates:
- CDSCO (Central Drugs Standard Control Organisation) — India’s national drug regulator, part of the Ministry of Health and Family Welfare
- State Drug Control Authorities — Each Indian state has a drug control department that can issue GMP certificates for manufacturing units within their jurisdiction
- WHO Prequalification Programme — For certain products (HIV, TB, malaria, reproductive health), WHO itself conducts inspections and issues prequalification status
- Recognized International Authorities — Some facilities hold GMP certificates from the USFDA (USA), MHRA (UK), TGA (Australia), or EU GMP, which India also recognizes as equivalent
⚠️ Red flag: If the certificate is issued by a private consulting firm or a body you cannot find on the CDSCO or WHO website, treat it with extreme caution. Legitimate GMP certification always comes from a government or intergovernmental regulatory agency.
📋 Step 2: Verify the Certificate Number Against CDSCO Records
CDSCO maintains a public database of licensed pharmaceutical manufacturers in India. While there is no single central “WHO-GMP certificate checker,” you can verify a manufacturer’s regulatory status through multiple channels:
Method A: CDSCO SUGAM Portal
The CDSCO SUGAM portal (sugam.gov.in) is the primary online system for drug licensing in India. Manufacturers registered with CDSCO can be looked up by their license number. Key points:
- A valid manufacturing license number (formulation or API) is required to operate legally in India
- The license is tied to a specific manufacturing address and product category
- A WHO-GMP certificate should reference the same manufacturing license number as on SUGAM
Method B: State Drug Control Websites
Each Indian state’s drug control authority maintains its own register. For example, Gujarat’s FDA, Maharashtra’s FDA, and Telangana’s Drug Control Administration all publish searchable databases of licensed manufacturers within their state. Since many of India’s largest pharma manufacturing clusters are in Gujarat (Ahmedabad, Ankleshwar) and Telangana (Hyderabad), checking these state registers is particularly useful.
Method C: Direct Request to the Manufacturer
Reputable manufacturers will provide their WHO-GMP certificate upon request, along with their manufacturing license number. Cross-reference the license number and certificate dates against what appears on the CDSCO SUGAM portal or the relevant state drug control website.
📅 Step 3: Check the Validity Period
WHO-GMP certificates have an expiration date. In India, GMP certificates are typically valid for:
- 3 years from the date of inspection (standard for most facilities)
- 2 years for some product categories or first-time certifications
- Extended validity may apply for facilities with an excellent inspection history
⚠️ Red flag: If a manufacturer shows a WHO-GMP certificate that expired more than 6 months ago and cannot provide a renewal, this is a strong indicator that their current GMP compliance status is uncertain. Always ask for the most recent certificate.
Also check the inspection date versus the issue date. A large gap between the inspection and the issue of the certificate may indicate administrative delays — not necessarily a problem, but worth noting.
🏭 Step 4: Verify the Manufacturing Address Matches the Certificate
A WHO-GMP certificate is site-specific. It certifies a particular manufacturing address, not the company as a whole. Verify that:
- The address on the WHO-GMP certificate exactly matches the address on the manufacturing license
- The product you intend to purchase is manufactured at the certified address, not at a different facility
- If the manufacturer has multiple plants, ask for the specific certificate covering the plant that produces your product
- The certificate lists the dosage forms (tablets, capsules, injectables, etc.) for which the plant is certified — a tablet-manufacturing plant’s certificate does not cover injectables
🌍 Step 5: Check WHO Prequalification Status (For Key Product Categories)
For certain essential medicines — particularly antiretrovirals (HIV), anti-TB drugs, antimalarials, and reproductive health products — the WHO maintains a Prequalification Programme that goes beyond standard GMP certification. WHO Prequalification involves:
- Detailed product dossier review by WHO experts
- On-site inspection of the manufacturing facility by WHO inspectors
- Ongoing post-market surveillance and batch testing
- Public listing on the WHO Prequalified Products List
You can search the WHO Prequalified Products List at: extranet.who.int/pqweb/medicines/prequalified-lists — this is the most authoritative global database of quality-assured medicines.
While WHO Prequalification is not required for all generic medicines (most Indian generics are not prequalified), having this status is an additional strong signal of manufacturing quality and regulatory compliance.
✅ Step 6: Practical Verification Checklist
Before placing an order with a new Indian generic medicine supplier, use this checklist:
- ☐ Request the WHO-GMP certificate and manufacturing license from the supplier
- ☐ Verify the issuing authority is CDSCO or a recognized state drug control authority
- ☐ Check the certificate is currently valid (not expired)
- ☐ Confirm the manufacturing address on the certificate matches the supplier’s declared facility
- ☐ Verify the dosage forms listed on the certificate cover your product
- ☐ Cross-reference the license number on the CDSCO SUGAM portal or state drug control website
- ☐ Check the supplier’s name against CDSCO’s public NSQ (Not of Standard Quality) alerts
- ☐ Ask for batch-specific Certificate of Analysis (CoA) for any order you place
- ☐ If purchasing WHO-prequalified products, verify the listing on WHO’s website
For a list of verified and reliable pharmaceutical distributors, refer to the IMSDA’s verified member directory.
📌 Key Takeaways
- WHO-GMP is not a single global certificate — it is issued by recognized national regulatory authorities (in India, CDSCO and state drug control authorities)
- Verification is a multi-step process that involves checking the issuing authority, validity period, site address, and cross-referencing against official databases
- India’s regulatory framework is strengthening — CDSCO’s recent reforms (outsourced GMP audits, expanded scientific cadre, transparent NSQ alerts) are making it easier for international buyers to perform due diligence
- Always request batch-specific documentation — even a certified facility can produce substandard batches; a Certificate of Analysis for each batch is essential
- Work with verified distributors — organizations like IMSDA vetted member distributors to help buyers connect with reliable, GMP-compliant suppliers
📞 Need Help Sourcing Verified Generic Medicines?
For a list of verified and reliable pharmaceutical distributors, refer to the IMSDA’s verified member directory. IMSDA can help connect you with GMP-compliant Indian manufacturers and distributors who meet international quality standards.
For more information, contact IMSDA at contact@indiamedicine.org.