Also, seniority is often determined by the length of service and promotions within the Indian Railways. Each group/technical service has a defined career progression, and seniority affects postings and promotions.
Here's a structured overview of the . Note that IRSME is a group-B service under Technical Services, and their hierarchy is determined by administrative ranks, qualifications, and years of service. The structure may vary slightly based on departments (Signal, Mechanical, etc.), but this is a general framework: Seniority List of IRSME Officers in Indian Railways (Based on Standard Administrative Framework) seniority list of irsme officers of indian railways
I know that Indian Railways has a structured hierarchy, especially for its technical departments. Signal Engineering and Mechanical Engineering might have different chains of command. The user might be an employee or aspirant looking to understand the ranking or career progression within their department. Also, seniority is often determined by the length