Choke coils (chokes)
Choke coils (chokes), a type of inductor
HSN 8504 50 10 (choke coils) is not covered by a Bureau of Indian Standards Quality Control Order and carries no Partner Government Agency clearance requirement at the tariff-line level. Import follows the standard customs procedure: Importer-Exporter Code (IEC), bill of entry, commercial invoice, packing list. Other products within Chapter 85 — including certain transformers, static converters, and power supply units — may attract BIS Quality Control Order compliance under separate tariff lines.
Chapter 85 carries some of India's most active BIS Quality Control Orders, and the boundary between a choke coil classified here and an inductor or transformer assembly classified under a neighbouring heading is not always self-evident. Re-classification by customs to a covered heading triggers retrospective compliance, including detention pending BIS registration. Verify that the product's functional description, circuit role, and commercial documentation consistently support classification as a discrete choke coil before relying on the absence of compliance at this tariff line.