Here are some PCM test series based on the Tamil Nadu Board :

1. Embibe (https://www.embibe.com/exams/tn-tamil-nadu-board-class-12-mock-test/?utm_source=chatgpt.com) – Tamil Nadu Board Class 12 mock tests

2. iPractice (https://www.ipractice.in/school-board-exam/TN-XII?utm_source=chatgpt.com) – Chapter-wise & topic-wise practice tests

3. QuestionCloud (https://www.questioncloud.in/tnsb-em/?utm_source=chatgpt.com) – Online test series with detailed solutions

These platforms provide mock tests, performance analysis, and topic-wise questions to help you prepare effectively.