NMTC is open to students from class 5 up to undergraduate degree level. Participants are grouped into five categories based on their class or academic level.
- Gauss (Primary): Classes 5 – 6
- Kaprekar (Sub-Junior): Classes 7 – 8
- Bhaskara (Junior): Classes 9 – 10
- Ramanujan (Inter): Classes 11 – 12
- Aryabhata (Senior): Undergraduate degree or equivalent
Each category follows a similar syllabus with increasing difficulty. Senior‑level contestants participate in a single‑stage final test.




