ThunderStudy
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CBSE Class 12 notes, CUET mock tests, SSC CBT and Banking mocks — everything you need to study smarter, completely free.

19Class 12 Subjects
3Streams
14+CUET Mocks
100%Free Always
Quick Answer

ThunderStudy is a 100% free Indian education platform offering CBSE Class 12 notes for all streams (Commerce, Science, Humanities), free CUET 2026 mock tests, SSC CGL CBT mocks and Banking mock tests — no registration, no paywall, ever. Last updated: .

All Subjects — Direct Links

Jump directly to any subject. Each page has notes, important questions, PYQs and exam prep. Divided into Board (Class 10 & 12) and CUET sections.

Board Exams — Class 10 & 12
Class 12 — Commerce Stream
Class 12 — Science Stream
Class 12 — Humanities Stream
Class 12 — Common Subjects (All Streams)
Class 10 — Board Subjects
CUET — Domain Subjects & GAT
CUET — Commerce Domain
CUET — Science Domain
CUET — Humanities Domain
CUET — Common Subjects (All Streams)

Free Mock Tests & Exam Prep

Full-length CBT-style mock tests with real exam interface, auto-scoring and detailed analysis.

All Exams
ThunderStudy covers CUET (all domain subjects + GAT), SSC CGL/CHSL/MTS, Banking (IBPS PO, SBI PO, IBPS Clerk, SBI Clerk), JEE Main/Advanced, NEET UG, CAT, XAT, SNAP, NDA, CLAT, CA Foundation/Inter/Final, CTET, DCA, PGDCA and B.Ed. All mock tests are CBT-style with real exam interface, auto-scoring and detailed analysis. No login needed.
Common Subjects (All Exams)

More Exams & Study Material

Comprehensive preparation material for JEE, NEET, CAT, NDA, CLAT, CA, NCERT, Diploma, TET and more — all free.

CBSE — Exam Resources (All Subjects)

Topper notes, formula sheets, KV sample papers, topper answer sheets, PYQs, important questions, question bank, CBSE textbook, concept maps and special questions (design-based, A&R, case-based) for all subjects.

JEE — Engineering Entrance NEET — Medical Entrance CUET — All Subjects & Resources CAT / MBA Entrance Exams NDA — National Defence Academy CLAT / Law Entrance CA — Chartered Accountancy NCERT — Books & Solutions (Class 9–12) Diploma Courses TET / CTET — Teacher Eligibility

Stay Updated Everywhere

Get daily notes, mock test updates and study tips on all platforms. Find us at @Thunderstudy_official.

Everything You Need to Know

Answers to the most common questions about ThunderStudy, our subjects, mock tests and exam prep.

Yes. ThunderStudy is 100% free — no registration, no paywall, no subscription and no hidden charges. All notes, mock tests, PYQs and study material are freely accessible to every student. The mission is free education for all, and that will not change.
ThunderStudy covers all three CBSE Class 12 streams. Commerce: Accountancy, Business Studies, Economics, Applied Maths. Science: Physics, Chemistry, Biology, Mathematics. Humanities: History, Geography, Political Science, Psychology. Plus English and Physical Education — 19 subjects in total.
CUET mock tests on ThunderStudy are full-length, timed tests that mirror the real NTA CUET exam pattern. They include domain subject tests and the General Aptitude Test (GAT). Each test has auto-scoring, a countdown timer, and a detailed result with subject-wise performance. No login is needed — start directly from the browser.
Yes. All SSC and Banking CBT mock tests on ThunderStudy are mobile-responsive and work on any device — smartphone, tablet or desktop — without needing to install any app. Just visit the link in your browser and start the test.
Current Affairs are regularly updated at wondermayank.github.io/Current_Affairs/ — covering daily, monthly and annual current affairs relevant to SSC, Banking, CUET and other competitive examinations. This is the same team that builds ThunderStudy.
Yes. ThunderStudy provides Physics, Chemistry and Biology resources that support both CBSE Class 12 and JEE Main, JEE Advanced and NEET UG preparation. The Science Hub at commercesehoga.github.io/jee-neet is dedicated to engineering and medical entrance exam prep.
ThunderStudy covers CBSE Class 12 (all three streams), CUET, SSC, Banking, JEE and NEET — all in one ecosystem, all completely free. There is no registration, no app install and no monetization barrier. Content is built by the Thunder Team (led by Wondermayank) specifically for Indian students, with a focus on accuracy, exam-relevance and accessibility.
There are two blogs. commercesehoga.blogspot.com is the main blog with study tips, notes and exam strategies for CBSE, CUET, SSC and Banking. thunderstudy.blogspot.com is the official ThunderStudy study blog with updates, resources and articles from the Thunder Team. Both are free and open.
ThunderStudy is built and maintained by Wondermayank — a creative developer and designer — and the Thunder Team. The platform is available at commercesehoga.github.io and thunderstudy.github.io. You can follow the team at @Thunderstudy_official on Telegram, YouTube, Instagram, X and Threads.
ThunderStudy is built as a Progressive Web App (PWA) where possible, so pages you have already visited may be accessible offline. However, for the best experience and access to the latest content, a stable internet connection is recommended.
Yes — ThunderStudy is 100% safe. All your progress, scores and preferences are saved locally in your browser (localStorage). Nothing is sent to any server. Your data never leaves your device, which means complete privacy and zero data collection. No account, no login, no tracking. Your study data belongs only to you.
No. ThunderStudy requires zero registration and collects zero personal data. There is no account system, no email required, and no cookies used for tracking. The platform is completely open — just visit and start studying. This is by design: free and private education for every student in India.
Yes. ThunderStudy covers both Computer Science (CS) and Informatics Practices (IP) for CUET as well as CBSE Class 12. You can access CS at commercesehoga.github.io/computer/cs and IP at commercesehoga.github.io/computer/ip. Both subjects are listed under the CUET Common Subjects section on this page.
Yes. All mock test scores, progress and results are saved locally in your browser. As long as you use the same browser on the same device, your history will persist. Since everything is stored locally, your data is completely private and will never be shared with anyone.
To prepare for CUET in 2 months: Week 1–2 — complete NCERT revision for all domain subjects. Week 3–4 — practice chapter-wise important questions available on ThunderStudy. Week 5–6 — take full-length CUET mock tests at commercesehoga.github.io/cuet. Week 7–8 — revise weak areas, focus on GAT (General Aptitude Test) and English language section. Take at least 10 full mocks before the exam. Daily 4–5 hours of focused study is sufficient if your NCERT base is strong.
Free CBSE Class 12 Accountancy notes, important questions and previous year questions (PYQs) are available at commercesehoga.github.io/commerce/acc — part of ThunderStudy's Commerce Hub. No login or download required — all material is directly accessible in the browser. Topics covered include Partnership Accounts, Company Accounts, Cash Flow Statement, Ratio Analysis and more.
ThunderStudy offers the best free CUET Commerce mock tests for 2026 at commercesehoga.github.io/cuet. The tests follow the exact NTA CUET pattern — 50 questions per domain subject, 45-minute timer, auto-scoring and detailed result analysis. Commerce subjects covered: Accountancy, Business Studies and Economics. No registration needed. The tests are updated for CUET 2026 syllabus.
Computer Science (CS) is more theory and programming intensive — it covers Python programming, data structures, computer networks and cybersecurity. Informatics Practices (IP) is more applied — it focuses on Python basics, data handling using Pandas and NumPy, data visualisation using Matplotlib, databases with MySQL, and societal impacts of technology. CS is generally considered harder than IP. Both are CBSE Class 12 electives and are also available as CUET domain subjects. Study material for both is at commercesehoga.github.io/computer/cs and /computer/ip.
ThunderStudy is completely free with no paywalls, no registration and no app install — unlike Unacademy or BYJU's which charge for premium content. For CUET and CBSE Class 12 specifically, ThunderStudy provides full-length mock tests, chapter-wise notes, important questions and PYQs at zero cost. If your goal is free, accessible, exam-focused preparation without ads or subscriptions, ThunderStudy is designed exactly for that.
You can ask any question on our dedicated FAQ and support page at commercesehoga.github.io/fqa. The Thunder Team will respond as soon as possible. You can also reach us on Telegram at @Thunderstudy_official.