1605CRUSTACEANS, MOLLUSCS AND OTHER AQUATIC INVERTEBRATES, PREPARED OR PRESERVED
HSN heading 1605 falls under Chapter 16 — preparations of meat, of fish, of crustaceans, molluscs or other aquatic invertebrates or of insects. It breaks down into 19 sub-codes listed below.
Sub-codes under 1605 (19)
160510
CRAB
160521
NOT IN AIRTIGHT CONTAINER
160529
Other
160530
LOBSTER
160540
OTHER CRUSTACEANS
160551
Oysters
160552
Scallops, including queen scallops
160553
Mussels
160554
Cuttle fish and squid
160555
Octopus
160556
clams, cockles and arkshells
160557
Abalone
160558
Snails, other than sea snails
160559
Other
160561
Sea cucumbers
160562
Sea urchins
160563
Jellyfish
160569
Other
160590
Other
About HSN heading 1605
The 4-digit code 1605 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 16, which covers preparations of meat, of fish, of crustaceans, molluscs or other aquatic invertebrates or of insects.