What yield and income can water chestnut give and where do I sell it?

Water chestnut can give a useful income from ponds and waterlogged land that would otherwise earn nothing, and it is harvested in several pickings over the season. Yield and income vary with water management, variety, pond fertility and labour, and especially with the price, so no single figure is reliable. It is sold fresh as the green horned fruit in local and urban markets, with strong seasonal and festival demand (it is popular during fasting and vrat periods), and the dried nuts are also milled into singhara flour, which adds a value-addition option. Being perishable when fresh, selling quickly or drying for flour helps. Get realistic yield and current fresh and flour price ranges for your area from your KVK and local mandi, and check any pond lease costs and rules before committing.