About TN Online Test

TN Online Test is a free study platform for Tamil Nadu State Board (Samacheer Kalvi) students from Class 1 to Class 12. Our goal is simple: make high-quality, exam-focused practice available to every student, in both English and Tamil, on any device.

What we offer

For each chapter we publish solved book-back multiple-choice questions with step-by-step explanations, concise study notes, formula sheets, quick answer keys, and interactive online practice tests that score you instantly. Everything is organised by class, subject and chapter so you can find exactly what you need before an exam.

Why we built it

Good practice material is often scattered, hard to read on a phone, or locked behind paywalls. We wanted one clean, fast, bilingual place where a student can read the solution to a question, understand the method, and then test themselves — for free.

How we keep content accurate

Our explanations and notes are written from scratch and reviewed for correctness, and we verify every answer key rather than copying it. If you ever spot a mistake, please tell us — corrections from students help everyone.

Get the most out of it

Read a chapter’s solved MCQs and notes, then take the practice test to check yourself. When you want timed exams, duels with friends, progress tracking and bookmarks, open the app.