HSN HEADING
3811ANTI-KNOCK PREPARATIONS, OXIDATION INHIBITORS, GUM INHIBITORS, VISCOSITY IMPROVERS, ANTI-CORROSIVE PREPARATIONS AND OTHER PREPARED ADDITIVES, FOR MINERAL OILS (INCLUDING GASOLINE) OR FOR OTHER LIQUIDS USED FOR THE SAME PURPOSES AS MINERAL OILS
HSN heading 3811 falls under Chapter 38 — miscellaneous chemical products. It breaks down into 5 sub-codes listed below.
Sub-codes under 3811 (5)
About HSN heading 3811
The 4-digit code 3811 is an HSN heading — a mid-level grouping that breaks down further into 6-digit sub-headings and 8-digit tariff items. Choose the most specific sub-code that matches your supply so the GST rate, e-invoice schema, and GSTR-1 HSN summary all line up correctly. It sits inside Chapter 38, which covers miscellaneous chemical products.