| Value | Category |
|---|---|
| 00 | not reported |
| 01 | not literate |
| 02 | literate without formal schooling |
| 03 | literate but below primary |
| 04 | primary |
| 05 | middle |
| 06 | secondary |
| 07 | higher secondary |
| 08 | diploma / certificate course in agriculture |
| 09 | diploma / certificate course in engineering & technology |
| 10 | diploma / certificate course in other subjects |
| 11 | graduate & above in agriculture |
| 12 | graduate & above in engineering & technology |
| 13 | graduate & above in medicines |
| 14 | graduate & above in other subjects |
| 15 | invalid |