In competitive environment lean manufacturing is necessary in every industry. Lean production is a standard manufacturing mode of the 21st century All the manufacturing industries have put a continuous efforts for its survival in these current world. In order to handle the critical situations manufacturers are trying to implement new and innovative techniques in their manufacturing process. Later on lean was formulated and developed as the solution to the fluctuating and competitive business environment. Due to rapid change in business environment the manufacturing organization are forced to face challenges and complexities in the competition. The concept of lean manufacturing was developed for maximize the resource utilization and minimize the wastes. The main focus of the lean manufacturing is to satisfy customer demands for high quality and low cost. The technique not only identifies the reasons for waste but also helps in its removal through marked principles and guidelines. Lean Manufacturing is an efficient and fast growing approach in the world of competition. Lean manufacturing utilizes a wide range of tools and techniques the choice of tools is based on the requirement. Many parameters contribute success of lean. Organizations which implemented lean manufacturing have higher level of flexibility and competitiveness. However, lean manufacturing provides an environment that is highly conducive to waste minimization. The majority of the study focuses on single aspect of lean element, only very few focuses on more than one aspect of lean elements, but for the successful implementation of lean the organization had to focuses on all the aspects such as Value Stream Mapping VSM , Cellular Manufacturing CM , U line system, Line Balancing, Inventory control, Single Minute Exchange of Dies SMED , Pull System, Kanban, Production Leveling etc., G. K. Kiran Kumar "Understanding the Need of Implementation of Lean Techniques in Manufacturing Industries: A Review " Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-3 , April 2019, URL: https://www.ijtsrd.com/papers/ijtsrd23194.pdf