The purpose of this paper is to highlight the lean principles, tools and benefits of lean concepts inindustries. Lean manufacturing is plethora of principles that focus on cost reduction by identifying andeliminating non value added activities. The fiercely globalised and competitive markets of 21st centurydemand for increasing high variety of products at reducing cost, lesser lead time and perfect quality.This changing scenario calls for a new manufacturing that would enable them to compete in thiscompetitive globalization market. This research addresses the application of lean manufacturingconcepts to the continuous production/process sector with a focus on the steel industry. The ideas aretested on large manufacturing company.