Description : Betel leaf (Piper betle), known locally as paan, is a major, highly profitable cash crop in Bangladesh, with key cultivation areas in Rajshahi, Kushtia, and is Chittagong Hill Tracts. The crop prefers well-drained, fertile soil and cultivated in traditional specialized fenced sheds called boroj (about 5-6 feet high). The sector is growing due to both local demand and the exports. Bangladesh.