The ISI mark is India's oldest product certification mark, issued by the Bureau of Indian Standards (BIS). If your product falls under a notified Indian Standard, you generally cannot sell it in India without it — regardless of how good the product itself is.
What the mark actually certifies
An ISI mark on a product means the manufacturer holds a valid BIS licence for that specific product against a specific Indian Standard (for example, IS 302 for household electrical appliances). It is not a one-time test report — it's an ongoing licence tied to a factory, a product, and a standard, renewed periodically and backed by surprise inspections.
Who needs it
Two groups most commonly need to apply:
- Domestic manufacturers producing goods under a "notified" category — steel, cement, electrical appliances, toys, and packaged drinking water are common examples.
- Importers and brand owners who get products manufactured on their behalf and sell them under their own brand in India.
If you're not sure whether your product category is notified, that's the most common question we answer in a first call — the notification lists change, and a product that didn't need certification two years ago may need it now.
Documents to have ready
Before applying, it's worth gathering:
- A clear product specification sheet, including the exact Indian Standard you believe applies.
- Factory details — layout, machinery list, and in-house testing capability.
- Raw material sourcing details, since some standards require traceability.
- Existing quality control records, even informal ones.
What tends to go wrong
The single biggest cause of delay isn't the paperwork — it's applying under the wrong standard, or the wrong version of a standard, and only discovering the mismatch at the factory audit stage. Confirming the correct scheme before any documentation work begins is the difference between a 6-week process and a 14-week one.