The new generation GST Module in India is designed for syncing only with the HSN Code. The full abbreviation of HSN is the Harmonised System of Nomenclature. It's a Six digit uniform code that classifies 5000+ product. HSN Code stands for Harmonized System of Nomenclature. This term was introduced and developed by the WCO (World Customs Organization) to classify goods existing in the entire world in a logical and systematic manner. HSN code was introduced to ensure uniformity of goods all over the world. This was done to reduce costs and efforts and help in the classification of goods in a manner that could be understood by all.