How to Conduct an On-Site Inspection of an Indian Supplier: A Step-by-Step Checklist

An on-site factory inspection is the single most reliable method available for verifying an Indian supplier's capabilities, legal standing, and production quality. No amount of document checking, email correspondence, or video calls can substitute for a physical visit conducted by a trained inspector who knows what to look for and what questions to ask. This article provides a complete, field-tested framework for conducting a thorough on-site inspection — from the moment you arrive at the gate to the final report. Learn more about our company and inspection team.

Why On-Site Inspection Matters

The consequences of skipping an inspection can be severe. Consider these real patterns our team has documented:

• A supplier presents themselves as a manufacturer with a 50,000 sq ft facility. In reality, they are a trader who outsources production to multiple small workshops with no quality control.
• A factory claims ISO 9001 certification and sends a convincing PDF. The certificate turns out to be forged — the ISO body's verification portal shows no record of the company.
• A pharmaceutical supplier claims GMP-compliant production. The on-site visit reveals outdated equipment, no dedicated sampling room, and staff who cannot explain the SOP procedures.

An on-site inspection eliminates these risks by providing direct, observable evidence. It also has a powerful psychological effect: a supplier who knows they will be physically inspected is significantly less likely to attempt misrepresentation.

Block 1 — Documents at the Gate

Before you set foot inside the production area, request and verify the following documents from the supplier's front office. Legitimate manufacturers keep these readily available for audit visits.

• GST Registration Certificate — verify status on gst.gov.in before arriving.
• IEC (Importer-Exporter Code) — mandatory for any exporter; verify on DGFT portal.
• Factory Registration Certificate — issued under the Factories Act 1948; includes licensed capacity.
• Product-specific licences — FSSAI for food, BIS for standardised goods, Drug Licence for pharmaceuticals.
• ISO or other management system certificates — note the issuing body and certificate number; verify online.
• Trade Licence / Municipal Certificate — confirms the factory is legally authorised to operate at that address.
• Recent utility bills — electricity and water bills confirm the facility is operational.
• Company PAN card — to cross-reference with GST and corporate registry records.

Block 2 — Production Capacity

The production floor tells you more about a supplier's real capabilities than any brochure or product catalogue. Assess the following:

• Floor space: Walk the entire facility. A supplier claiming monthly output of 100 tonnes cannot produce that volume in a 5,000 sq ft space.
• Machinery and equipment: Are machines modern, well-maintained, and appropriate for the stated product? Ask when key equipment was purchased and request maintenance records.
• Headcount: Count the number of workers on the floor during your visit. Cross-reference with claimed production volumes — the numbers should be consistent.
• Raw material stocks: Inspect the raw material storage area. Sufficient stock for upcoming orders suggests genuine business activity.
• Active production runs: If production is active during your visit, observe it. If the factory floor is suspiciously quiet, ask why.
• Utilities: Industrial-scale production requires consistent electricity and water supply. Check for power backup systems and water treatment.

Block 3 — Quality and Standards

Quality system assessment is the most technical part of the inspection. Focus on:

• In-house laboratory: Does the factory have testing equipment appropriate to their product? A spice processor should have moisture analysers and microbial testing capability.
• QC documentation: Request batch manufacturing records, inspection logs, and non-conformance reports from recent production runs.
• Sampling procedures: How does the factory draw samples? Is there a dedicated sampling room or protocol? Are samples retained for a defined period?
• Certificate of Analysis (COA): Request a COA from a recent batch and ask to see the test results that support it.
• Reject/rework rates: Ask about the factory's defect rate and what happens to non-conforming product.

Block 4 — Financial Stability

A financially stressed supplier is a high-risk supplier. Indicators of financial health include:

• Active, diversified customer base — ask for 3-5 reference customers (domestic and international).
• Bank relationships — does the supplier have a letter of credit facility? This indicates credibility with their bank.
• Recent investment — new equipment or facility expansion suggests the business is growing, not declining.
• Order book — ask to see the production schedule for the current month (redacting confidential client names if needed).

Block 5 — Storage and Dispatch Conditions

Post-production handling is often overlooked but is critical for product integrity, particularly for food, chemicals, and pharmaceuticals:

• Finished goods warehouse: temperature and humidity control, pest control, segregation of different product types.
• Packaging area: packaging materials stored correctly, labelling process observed.
• Loading dock: conditions for loading containers, documentation of dispatch.
• Cold chain (if applicable): refrigeration capacity and temperature monitoring logs.

Full 40-Point Inspection Checklist

1. GST Registration verified on official portal — status Active
2. IEC code verified on DGFT portal
3. Factory Registration Certificate present and current
4. All product-specific licences (FSSAI/BIS/Drug) present and valid
5. ISO or management system certificate verified with issuing body
6. Trade Licence / Municipal Certificate reviewed
7. Recent utility bills confirm operational status
8. Company PAN card matches GST and corporate registry records
9. Physical address matches registered address in all documents
10. Factory signage, reception, and staff match claimed identity
11. Total floor space observed and consistent with claimed capacity
12. Production equipment appropriate for stated products
13. Machinery maintenance records available and current
14. Worker headcount consistent with claimed production volume
15. Raw material storage area inspected — adequate stocks present
16. Active production observed or credible explanation for inactivity given
17. Power backup and utilities confirmed as adequate
18. In-house QC laboratory with appropriate equipment present
19. Laboratory test equipment calibrated (calibration certificates available)
20. Batch manufacturing records or job cards reviewed
21. Certificate of Analysis from recent batch reviewed
22. Sampling procedure documented and observed
23. Retained samples storage confirmed
24. Non-conformance/rejection procedure documented
25. QC manager or head of quality interviewed
26. Minimum 3 reference customers provided
27. At least 1 international buyer reference provided
28. Current production schedule shared (sanitised if needed)
29. Bank name and account details confirmed (cross-reference with invoice)
30. LC facility or export financing relationship confirmed
31. Finished goods warehouse temperature/humidity checked
32. Pest control records for warehouse reviewed
33. Packaging area inspected — materials and labelling process observed
34. Loading dock and dispatch area inspected
35. Cold chain capacity verified (if applicable)
36. Fire safety and emergency exit provisions observed
37. Worker welfare and labour conditions broadly assessed
38. Photos taken of all key areas (with supplier consent)
39. At least one senior management representative met in person
40. Supplier signed and dated the inspection visit log

What to Do After the Inspection

The inspection visit generates raw data; your decision depends on how you analyse it. Write up your findings within 24 hours while observations are fresh. Score each block independently: Documents, Capacity, Quality, Financial, Logistics. A supplier scoring well in four out of five blocks may still be worth working with under additional safeguards. A supplier with serious deficiencies in Documents or Quality blocks should not receive an order regardless of price attractiveness.

Share the inspection report with your legal team before finalising the contract. Use the findings to negotiate specific quality clauses, pre-shipment inspection requirements, and penalty provisions. If the inspection reveals that the supplier is a trader rather than a manufacturer, re-negotiate the pricing accordingly or identify the actual manufacturer directly. Browse our client cases to see how inspections have protected buyers from losses. To avoid fraud patterns entirely, read our guide on top 5 supplier fraud schemes.