There are several coal washing processes viz. Barrel Process, ZIG Method, Fluodized Bed Process, Heavy Media Bath, Heavy Media Drum And Heavy Media Cyclone. Many of the above mentioned processes are useful for non Indian origin coal. As per the data provided by Coal India Limited(CIL), Heavy Media is the most suitable process of washing Indian origin coal because of the specific density of Indian coal which varies from 1.4 – 1.6 (approx). Hence it cannot be washed by the process which involves water as a principal media (as density of water is 1). Henceforth the media should have density within the range of 1.4 – 1.6 so as to separate good quality clean coal from the reject coal. Therefore MCWPL has established a coal washery based on Heavy Media Process. MCWPL has got the unique future among all existing washeries in India i.e. we can wash the coal as per the requirement of the client regarding yield and quality of clean coal. For this we have set up a state of the art Gauge meter which can control the density of the heavy media as per the requirements of our clients.