The Khazan is a traditional farming system of Goa, India.
It comprises mainly rice-fish fields established on reclaimed coastal wetlands, salt marshes and mangrove forests.
It involves construction of levees and sluice gates to prevent sea water from entering the fields.
[1] The Bandora (Bandiwade) copper-plate inscription of Anirjita-varman (likely a Konkan Maurya king), dated to 5th-6th century on palaeographical grounds, refers to the khazan system as khajjana.
The recipient of the grant was expected to convert this wetland into a cultivated field by constructing a bund to prevent the salty sea water from entering the land.