What is HSN Code 3921?
HSN code 3921 is the Harmonized System of Nomenclature classification for Plastics And Articles Thereof under India's Goods and Services Tax (GST). It is a 4-digit code sitting at the heading (4-digit) level of the HSN hierarchy.
This code belongs to Chapter 39 — Plastics And Articles Thereof, which is part of Section VII: Plastics & Rubber. Every GST-registered business supplying plastics and articles thereof must quote HSN 3921 (or the digit-length required for its turnover) on tax invoices and in GSTR-1.