Crack TNPSC, NEET & JEE. Master Samacheer & NCERT, Class 6–12.

Free practice in Tamil & English. No login, no fees — start in two taps.

What is Brain Grain?

Brain Grain is a free practice app for Tamil Nadu learners. Pick what you are preparing for and it opens on your own screen: your streak, your weakest topic, and the next question in your syllabus. There is no login wall, no fee, and no advertisement between you and an answer.

Government exams. TNPSC Group 1, Group 2, Group 2A, Group 4 and Mains, with previous-year questions, unit-wise study material and a daily test every morning. SSC CGL, IBPS PO, RRB NTPC and UPSC CSE practice sets are here too, in the same format.

School, Class 6 to 12. Samacheer Kalvi chapter answers and MCQs for every subject, NCERT solutions for CBSE, public exam question papers, and a timed revision challenge for SSLC and HSC students.

NEET and JEE. Chapter tests across all 106 NCERT chapters, marked instantly and ranked against everyone else who took them, so you know where you stand rather than only what you scored.

Teacher and lecturer exams. CTET Paper I and Paper II and TNTET practice, including child development and pedagogy, bilingual throughout. UPTET Paper I and II share that bank in English and Hindi and keep their own progress, and UGC NET Paper 1 adds 417 questions across teaching aptitude, research aptitude, comprehension, communication and the rest of the ten units.

Studying abroad. IELTS, GRE and GMAT practice — 632 questions in all, each one explained, covering IELTS Reading, Listening, Writing and Speaking, GRE Verbal and Quant, and the GMAT Focus Edition including Data Insights.

A tutor at home. If practice on a screen is not enough, you can ask for a verified tutor to teach your child at home. You tell us the class, the subject and your pincode; we do the finding. Nothing is charged to see what is available.

AI skills. Eleven units on the one thing no syllabus has caught up with: what AI actually does, how to get useful work out of it, how to tell when it is confidently wrong, what never to paste into it, how voice-cloning and deepfake scams work, and what Indian law says about all of it. Written for a student being told not to use it, a teacher being told to use it, and anyone whose job is changing under them. No exam, no certificate, no login. Start on AI skills.

Sessions at your school, college or office. We also come and run sessions in person — AI, robotics, coding, child safety and public speaking for schools; public speaking, placement readiness and emotional wellbeing for colleges; public speaking, emotional intelligence, AI at work and POSH awareness for companies. Tell us the group and you get a written quote within two working days. Book a session. If you run sessions like these yourself, or you teach one child at a time, you can register to work with us — you are paid for the session and never charged a fee.

Every question is available in English and Tamil, and everything above is free.