Traditionally, paddy husk is removed by winnowing and grains are sorted manually. Mohan has developed a machine to mechanize the task. The machine works on the principle of winnowing, sorting rice grains as complete grains, broken grains and black/inedible grains. It also separates husk and stones, and can be operated manually or using mechanical power. The manual machine costs Rs 6000/- and can process over 400 kg of rice per hour.