About ThunderStudy
ThunderStudy is India's largest 100% free study platform — built so every student, regardless of background or income, can access world-class study material at zero cost.
Our Mission
Quality education should not cost money. ThunderStudy provides free notes, mock tests and downloadable books for CBSE Class 12, CUET 2026, JEE, NEET, NDA, CLAT/AILET, CA, NCERT (Class 6-12), Diploma courses, TET/CTET, CAT/MBA, SSC, Banking and UPSC — completely free, always. No paywall. No subscription. No hidden charges.
What We Cover
- CBSE Class 12 — Commerce: Accountancy, Business Studies, Economics, Applied Maths
- CBSE Class 12 — Science: Physics, Chemistry, Biology, Mathematics
- CBSE Class 12 — Humanities: History, Geography, Political Science, Psychology, Sociology, Legal Studies, Fine Arts
- CBSE Class 12 — Computer: Computer Science (CS), Informatics Practices (IP)
- CBSE Class 10 & NCERT: NCERT books, solutions and exemplars for Class 6–12 (Hindi medium too)
- CUET 2026: Full-length mock tests, domain subjects, GAT, English & Hindi
- JEE Main & Advanced: Physics, Chemistry, Maths — notes, formula sheets, mock tests
- NEET UG: Physics, Chemistry, Biology — NCERT notes, PYQs, mock tests
- CAT / MBA Entrance: Quant, LRDI, Verbal Ability, GK, mock tests
- NDA: Maths, GAT, chapter-wise MCQs, mock tests
- CLAT & AILET: Law entrance notes, practice tests, mock tests
- CA: Foundation, Intermediate & Final notes and formula sheets
- Diploma Courses: DCA, PGDCA, D.Ed, D.El.Ed, B.Ed
- TET / CTET: Teacher Eligibility Test notes, PYQs and mock tests for all states
- SSC: CGL, CHSL, MTS, GD, CPO, JE, Selection Post — CBT-style mock tests
- Banking: IBPS PO/Clerk/RRB, SBI PO/Clerk, RBI Grade B/Assistant, LIC AAO/ADO, EPFO
- UPSC: Civil Services — Prelims, Mains, GS papers, essay, NCERT foundation
- Free Books: 25+ downloadable books — Boards Dominator, Boards Killer, Boards Pro Series, Sample Papers, One Book For CUET, and GK MindMaster (for UPSC, SSC, Railways)
- Current Affairs: Daily, monthly, annual for all exams
Who Built ThunderStudy
ThunderStudy was created and is maintained by Wondermayank — an Indian developer, designer, and educator. Starting in 2023, the platform has grown to over 100,000 study files and 25+ free books, serving millions of Indian students preparing for school boards and competitive exams alike.
Privacy & Safety
ThunderStudy collects zero data. All progress, scores, and preferences are stored locally in your browser. Nothing is ever sent to any server. There are no cookies, no trackers, and no analytics. Your data never leaves your device.
Our Platforms
- thunderstudy.github.io — Main hub (all exams & resources)
- commercesehoga.github.io — Mock tests (CUET, SSC, Banking, CAT, NDA, CLAT, TET)
- commercesehoga.github.io/books — 25+ free downloadable books
- commercesehoga.blogspot.com — Commerce notes
- sciencesehoga.blogspot.com — Science notes
- thunderstudyofficial.blogspot.com — Blog
- thunderstudyhub.blogspot.com — Notes and more for all exams
- Current Affairs portal