In the recent years impact of labor turnover has received considerable attention by senior management, human resource professionals, and industrial psychologists. It has been proven to be one of the most seemingly intractable human resource challenges confronting organizations. Labor plays a significant role for the performance of any business firm. The efficiency, productivity and effectiveness of the Organization are highly influenced by a competent and well experienced workforce. This research was carried out to examine the impacts of labor turnover on Organization performance in IT sector WITH SPECIAL EMPHASIS ON IT DEPARTMENT OF TCS NOIDA .The main purpose of the study was to determine the impact of employee turnover on the performance of an organization. The research study supports the argument of Derek 2006 that the employees' turnover positively associated with the organization inefficiency. The sample study comprised fifty respondents, both qualitative and quantitative data have been used and the questionnaires were individually administered. It is clearly evidenced that there is negatively relationship between organizational performance and the employees' turnover. The general objective of this study was to assess the impacts of labor turnover on Organizational performance at TCS Noida. The study recommended that the Management continue employing people who are well trained and who perceive their jobs as expected. Organizations should not only employ to fill a job but also consider a fit between the person and the organization. It is highly recommended that management should give attention to those factors that they can easily manage. Management has to understand that people are different and appreciates those differences. Lovelesh Joshi | Dr. Deepak Dhariyal "Impact of Labor Turnover on Organizational Performance in it Sector (With Special Emphasis on it Department of TCS Noida)" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-5 , August 2019, URL: https://www.ijtsrd.com/papers/ijtsrd26753.pdf