Reasoning & Aptitude & General knowledge 

Harish Sir Maths Class by Harish Sir is a mathematics related Youtube channel in Telugu language. This channel is useful to all High School students, NMMS, NTSE, IIIT, APRJC, TSRJC, POLYCET and All Competitive Exams. Also this channel provides Aptitude and Reasoning videos for Competitive exams. Math Tips and Tricks, Math Puzzles and Riddles and Educational Guidance also available here.