Coal by nature creates sedimentary rock with shale and sandstone. These sedimentary rocks in roofs create cleats and cracks naturally or due to mining. With time, moisture, and air contact or after blasting these cracks and cleats loosen which creates safety risk as these loose parts can come down and injury someone. So, in underground coal mines, Dressing activity is done by skilled and experienced human dressers carefully. All technical inputs related to the Dressing operation have been covered in the module.