Turn travel into revision
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Audio-first exam preparation
Study for Tamil Nadu exams wherever your day takes you.
Short, syllabus-aligned audio lessons for TNPSC, TRB, TET, UPSC, school and competitive exams. Learn in Tamil and English while travelling, walking or revising at home.
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Start with the exam you are preparing for.
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CBSE
Central Board of Secondary Education
1,138 lessonsTNPSC
Tamil Nadu Public Service Commission
2,882 lessonsSSC
Staff Selection Commission
365 lessonsUPSC
Union Public Service Commission
1,344 lessonsTRB
Teachers Recruitment Board
949 lessonsTN BOARD
TNSCERT
364 lessonsCBSE
EDU - SONGS
22 lessonsNEET
National Eligibility cum Entrance Test
488 lessonsBuilt for busy learners
Make study time fit the day you already have.
Follow a clear syllabus path
Move from exam to subject, chapter and lesson without searching across unrelated material.
Understand in Tamil and English
Learn with familiar explanations while keeping the English terms used in exams and textbooks.
Popular with learners
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Number Systems
Introduction to Number System
Number Systems
Binary Number System
Historical Background
இந்திய அரசியலமைப்பின் பிரிட்டிஷ் சட்ட வேர்கள்
Forms of Business Organisation (Core Area)
தனியுரிமையாளர் நிறுவனத்தின் ஹீரோ வில்லன் யார்
Historical Background
இந்திய அரசியலமைப்பு உருவான ரகசியம்
Number Systems
Decimal Number System
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Free preparation guides
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Questions before you start
KalviYogi, explained clearly.
Can I use KalviYogi for free?
Yes. You can explore available free audio lessons without paying. A free account lets you save progress and continue listening across study sessions.
Which exams and subjects are available?
KalviYogi includes learning tracks for TNPSC, TRB, TET, UPSC, school subjects and other competitive exams. Available subjects and lessons are shown inside each exam track.
Are lessons available in Tamil or English?
Lessons use Tamil, English or a familiar mix of both depending on the topic. This keeps explanations easy to follow while retaining important exam terminology.
Can I study on my phone?
Yes. KalviYogi works in mobile and desktop browsers and can be installed as a web app on supported devices.
Can I listen offline?
Yes. Free learners can save up to six eligible lessons on their device, while Premium includes unlimited offline downloads.
Your next study session
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