Makhana (fox nut) farming in India, primarily in Bihar, is a profitable and sustainable venture that thrives in ponds and wetlands, with Bihar producing over 80% of the country's yield and the global supply. The crop is grown in water bodies during the February-March planting season, harvested manually in August-September, and then processed into the nutritious fox nut snack. Factors like government subsidies, a growing demand for healthy snacks, and the existence of value-added products contribute to its success, with states like West Bengal, Assam, and Uttar Pradesh also seeing increased cultivation.