If you are looking for previous year or sample papers, you can refer to the official links provided below from Careers360. These question papers can help you understand the exam pattern, frequently asked topics, and marking scheme with more clarity. Practicing these papers will also allow you to assess your strengths and areas that need improvement. If you have difficulty accessing the links or need further explanations on any topic, please feel free to ask.
https://school.careers360.com/boards/dge-tamil-nadu/tamil-nadu-class-12-2nd-mid-term-question-paper-2025-26