| Aspect | Direct Recruitment (DR) via UPSC-ESE | Promotion from Group 'B' | | :--- | :--- | :--- | | | Engineering graduates who clear the UPSC's ESE. | Serving Group 'B' officers in the Stores Department promoted based on seniority and performance. | | Allotment Year | The year of the exam they qualified through (e.g., ESE-2015). | A specific year of allotment is assigned (e.g., 2015) and they are placed below the relevant DR batch in the overall list. | | Point of Reference | Junior Scale (Group 'A') upon joining. | Substantive appointment to Group 'A' Junior Scale. | | Relevant IREM Para | Para 330 | Para 334 |
The Railway Board issues various types of seniority lists. They can be categorized primarily by the mode of entry: irss seniority list
Reforms and court rulings continually reshape how batch years are calculated, particularly when direct recruitment cycles face delays. | Aspect | Direct Recruitment (DR) via UPSC-ESE
An officer placed even due to wrong seniority can lose 1-2 years of promotion – major impact on pension and Apex Scale chances. | A specific year of allotment is assigned (e
Seniority in the IRSS is primarily determined by several key criteria outlined in the Indian Railway Establishment Manual (IREM) Date for Increment on Time Scale (DITS)