Alappuzha, also known as Alleppey, is the administrative headquarters of Alappuzha District in the south Indian state of Kerala. Alappuzha is the sixth largest city in Kerala with an urban population of 177,029. The different types of traditional Kerala boats found in the waters of Alappuzha can be broadly classified into these categories: kettu vallam (sewn boats), Shikara, house boats, large house boats, luxury house boats, small boats, Chundan Vallam (beaked boat), etc. The boats are made of natural products like bamboo, coir, and anjili tree wood, with cashew oil being used to waterproof the wood.