To conduct fair, transparent, and reliable Secondary (Class X) and Higher Secondary (Class XII) examinations for students studying in schools affiliated with the Tamil Nadu State Board.

To develop and periodically revise the school curriculum and syllabus to ensure quality education that meets national academic standards and prepares students for higher education and professional careers.

To promote academic excellence and holistic learning through effective teaching methodologies, continuous assessment, and modern educational practices across affiliated schools.

To regulate and monitor schools affiliated with the Tamil Nadu State Board to ensure that they maintain proper academic standards, infrastructure, and qualified teaching staff.

To provide accessible educational opportunities to students across Tamil Nadu and support their academic journey through student services such as results publication, admit cards, certification, and verification systems.