The traditional method of threshing, pearling and dehusking of millets consume a lot of time, labour, cost, and drudgery. It takes about five hours effort for threshing and pearling of 100 kg of finger millet grains and quality of grain also reduces. Due to this, the need of mechanical millet thresher cum pearler was felt. • Vivek Millet Thresher-cum-Pearler saves time, energy and reduces the drudgery of women farmers. It improves the quality of produce as compared to traditional method. • A finger millet thresher cum pearler with a threshing capacity of 30-35 kg/h and pearling capacity of 60-65 kg grain/h was designed on the basis of physical properties of the grain. • The threshing and pearling efficiency of thresher are 98.1 and 97.9 % respectively. • The power required for operating the thresher cum pearler was 0.746 kW. • For best performance, the thresher cum pearler should be operated at a cylinder speed of 1200 rpm with cylinder concave clearance 5 mm, increased canvas width of 2 mm, moisture content 10% for threshing and 8% for pearling.