The gold thread, the dye house and the finishing floor.
| Name | Where | What | |
|---|---|---|---|
| Tamil Nadu Zari Ltd | Kanchipuram, Gandhi Road | State enterprise making pure silver-gold zari | |
| All India Zari Manufacturers Association | Surat, Begampura | Industry body for real and imitation zari | |
| Weavers' Service Centre zari laboratories | Chennai; Kanchipuram; Varanasi | Zari purity certificates | |
| Central Silk Board zari testing facility | Kanchipuram | XRF testing of silver and gold content | |
| KSIC testing laboratory | Mysuru | Zari and silk testing |
IS 13673 is the Indian Standard for zari; the Weavers' Service Centres and the Central Silk Board facility at Kanchipuram test purity.
This page is a general guide. Requirements may change; check the relevant authority's current information before relying on them.
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