Cleaning and sorting of agro commodities is in practice since ancient time. Initially, thisprocess was carrying out at household level is now scaled up to industrial level looking toproduction and demand of all these commodities. It is necessary to clean, grade and sortall raw cereals, pulses, legumes, oil seeds and whole spices before any type ofconsumption or use in other products. Cereals, pulses, legumes, oilseeds and whole spicesare needed specific post-harvest operations, start right from farm after harvesting, anddivided into three stages: 1) Farm Level Operations; 2) Primary Processing and 3)Secondary Processing.