| Value | Category |
|---|---|
| 3 | enrolled in NFEC |
| 4 | enrolled in TLC/AEC |
| 5 | other non-formal |
| 6 | formal schooling : below primary |
| 7 | formal schooling : primary |
| 8 | formal schooling upper primary/ middle |
| 10 | formal schooling : secondary |
| 11 | formal schooling Higher Secondary |
| 12 | formal schooling : diploma/ certificate course (upto secondary) |
| 13 | formal schooling : diploma/ certificate course (higher secondary) |
| 14 | formal schooling : diploma/ certificate course (graduation & above) |
| 15 | formal schooling : graduate |
| 16 | formal schooling : Post graduate & above |