Chetlat is the northern most inhabited island. Coir twisting is the chief occupation of the people here. The coconut yield is poor and income is meager. Manufacture of mats and weaving of coconut leaves are the spare time industries here. The island suffered a great deal at the hands of the Portuguese in the 16th century. Boat building was a flourishing industry at the beginning of the 20th century when all the vessels needed by the Amindivi islanders were built here.