The Indian railways have technical and non-technical departments for its operation and management which form the base structure on which the railways function. Technical departments include civil, technical and mechanical engineering, signaling and telecom, and several others dealing with similar disciplines, while the non-technical departments include general services such as accounts, personnel management, Railway protection Force (RPF) or security and traffic services, among others. Each department has staff at various levels. The highest are the Group A officers, while the lowest in rank are the Group D staff members.
IRSEE falls under the category of Group A officers. The seniority list can be searched by " Google " > IRSEE seniority i.e.http://www.ireeindia.org/members/seniortiylistofelectricaldeptt.pdf