| Value | Category |
|---|---|
| 0 | None |
| 1 | Grades I and II (Sub A and B) a |
| 2 | Standard 2 |
| 3 | Standard 3 |
| 4 | Standard 4 |
| 5 | Standard 5 |
| 6 | Standard 6 (Form I) |
| 7 | Standard 7 (Form II) |
| 8 | Standard 8 (Form III; NTS 1) |
| 9 | Standard 9 (Form IV; NTS 2) |
| 10 | Standard 10 |
| 11 | Bachelors degree and equivalent |
| 12 | Masters degree |
| 13 | Doctorates |
| 14 | Diploma/Certificate with std. 10 |
| 15 | Diploma/Certificate with Std. 9 or 8 |
| 16 | Diploma/Certificate with Std. 7 or lower |
| 17 | Diploma/Certificate and bachelor's |
| 18 | Diploma/Certificate and master's |
| 19 | Diploma/Certificate and doctor's |
| 20 | Unspecified |