One Revision is dedicated to give learners free and authentic podcast, lectures and notes collected from standard books and governments archives. We present our sessions in a very innovative way so that our learners can remember and sustain them for a very long span of time. Our short sessions are very effective for the last moment revision as it covers all the important information about a particular topic in just one session. Highly recommended for Government competitive exams like Civil Services ( UPSC ) , SSC CGL, etc.