Disclaimer: Education guidance for students and parents choosing Tamil Nadu Higher Secondary groups. This is civic journalism, not a Directorate of Government Examinations circular or a school prospectus. Group codes, subject combinations, and undergraduate eligibility change — confirm the current offer with the admitting school and official admission notifications before you decide.
The group you select after Class 10 does not replace language or English. It only names the four Part III cores.
The six papers
- Part I — Language. Tamil or another language the school and board permit. This paper is independent of whether you pick science, commerce or humanities.
- Part II — English. Compulsory English for the general academic stream in this structure.
- Part III — Core subject 1. First of the four group subjects — for example Physics in 2502 / 2503.
- Part III — Core subject 2. Second group subject — for example Chemistry in the science groups.
- Part III — Core subject 3. Third group subject — Biology, Computer Science, Accountancy’s companions, or a humanities paper.
- Part III — Core subject 4. Fourth group subject — the paper that often distinguishes two groups in the same stream (Computer Science vs Biology, Computer Applications vs Business Maths, Political Science vs Computer Applications).
A group code is simply the board’s short name for one legal combination of those four Part III subjects. 2502 is not “computer group” as a nickname — it is Physics, Chemistry, Computer Science and Mathematics.
Older relatives may quote retired combination numbers. This desk uses current DGE codes that the 2026 edition of this guide treats as live: 2502, 2503, 2702, 2708, and 2800-series humanities (2804 and 2802 documented here).
Vocational or specialised streams exist outside this five-preference list. If a school offers a code we do not list, ask for the four cores in writing and compare them with the degree you want.
See the five preferred groups or how to choose. Board circulars: dge.tn.gov.in.
FAQ
How many examinations do I write?
A typical general academic student writes six papers: Part I language, Part II English, and four Part III cores that the group defines.
Is the group code the same as an old combination I heard about?
Codes have been revised with the new syllabus. This guide uses current DGE codes 2502, 2503, 2702, 2708 and 2800-series humanities. If a relative quotes an older number, ask the school for the current code.
Fine print
This page was drafted with AI-assisted tools and human editorial review for mychennaicity.in. AI can miss updates or local nuance — cross-check primary sources and your own documents before decisions. Cross-check group codes with the Tamil Nadu Directorate of Government Examinations and the admitting school. For engineering, medicine and professional courses, use the current TNEA, NTA and institute notifications — not this page alone.