Dr. R. S. Aggarwal is a well known academician and author who writes competitive and course books. Other books by R. S. Aggarwal are Mathematics for C. D. S. Entrance Examination, Quantitative Aptitude For Competitive Examinations, A Modern Approach To Verbal & Non-Verbal Reasoning, A Modern Approach To Logical Reasoning and Secondary School Mathematics For Class-10.
Born in 1946 in Delhi, Dr. R. S. Aggarwal graduated from Kirori Mal College, University of Delhi, and then went on to complete his post-graduation in Mathematics in 1969. Later, he completed his doctorate from Delhi University and taught at NAS College in Meerut for some years. He has written more than 75 books for students of all classes and levels.