| Value | Category |
|---|---|
| 1 | Open |
| 2 | Closed |
| 3 | NOP |
| 4 | Deleted (Units found non-existent within 3 years) |
| 5 | NR due to closure but in existence and owner/occupier is not traceable |
| 6 | NR due to non existence and owner is not traceable |
| 7 | NR due to relevant records are with court/Income Tax |
| 8 | NR due to recalcitrant / refuse to submit |
| 9 | NR due to factory under prosecution |
| 10 | NR due to other reasons |
| 11 | Deleted (Units found non-existent more than 3 years) |
| 12 | De-Registered |
| 13 | Defence, Oil storage, Technical Training inst., hotels |
| 14 | Identical with PSL No |
| 15 | Any other reasons (Specify) |
| 99 | Extracted from ASI 2000-01 |