| Induction Levels | ||
|---|---|---|
| Workmen - Unskilled Group | W0 | Regional Recruitment |
| Workmen - Semi-skilled Group | W3 | |
| Workmen - Skilled Group | W4 | |
| Supervisors | S1 | |
| Executives | E2,E3 | All India Recruitment |
| Promotions | ||
|---|---|---|
| Executives | E2, E6 | 4 Years |
| E3, E4, E5 | 3 Years | |
| Supervisors | S1, S2, S3 | 3 Years |
| S4 | 4 Years | |
| Workmen | W3 and above | 4 Years |
| W1, W2 | 6 Years | |
| W0 | 10 Years | |
