What is HSN Code 903290?
HSN code 903290 is the Harmonized System of Nomenclature classification for Automatic Regulating Or Controlling Instruments And Apparatus under India's Goods and Services Tax (GST). It is a 6-digit code sitting at the sub-heading (6-digit) level of the HSN hierarchy.
This code belongs to Chapter 90 — Optical, Photographic, Cinematographic, Measuring, Checking,…, which is part of Section XVIII: Optical, Medical & Precision Instruments. Every GST-registered business supplying automatic regulating or controlling instruments and apparatus must quote HSN 903290 (or the digit-length required for its turnover) on tax invoices and in GSTR-1.