A single unified Higher Secondary Certificate (HSC) stream offering academic and vocational tracks.
Students choose groups combining languages (Tamil and English as compulsory or primary languages) with electives across Science (Physics, Chemistry, Biology, Mathematics), Commerce (Accountancy, Commerce, Economics), or Business Maths.
Conducted at the Class 12 (HSC) level, with scores serving as the main criteria for university admissions and state-level cut-offs.