HSN CODE - 0306 : CRUSTACEANS, WHETHER IN SHELL OR NOT, LIVE, FRESH, CHILLED, FROZEN, DRIED, SALTED OR IN BRINE; SMOKED CRUSTACEANS, WHETHER IN SHELL OR NOT, WHETHER OR NOT COOKED BEFORE OR DURING THE SMOKING PROCESS; CRUSTACEANS, IN SHELL, COOKED BY STEAMING OR BY BOILING IN WATER, WHETHER OR NOT CHILLED, FROZEN, DRIED, SALTED OR IN BRINE; FLOURS, MEALS AND PELLETS OF CRUSTACEANS, FIT FOR HUMAN CONSUMPTION

Harmonised System of Nomenclature (HSN Codes) 0306 are used for the CRUSTACEANS, WHETHER IN SHELL OR NOT, LIVE, FRESH, CHILLED, FROZEN, DRIED, SALTED OR IN BRINE; SMOKED CRUSTACEANS, WHETHER IN SHELL OR NOT, WHETHER OR NOT COOKED BEFORE OR DURING THE SMOKING PROCESS; CRUSTACEANS, IN SHELL, COOKED BY STEAMING OR BY BOILING IN WATER, WHETHER OR NOT CHILLED, FROZEN, DRIED, SALTED OR IN BRINE; FLOURS, MEALS AND PELLETS OF CRUSTACEANS, FIT FOR HUMAN CONSUMPTION products under Goods and Service Tax classification.

India was originally using 6 digit HSN codes to classify commodities but later two more digits were added to make the codes more precise, resulting in an 8 digit classification.