About Author: Dr. Har Swaroop Sharma was a distinguished scholar of mathematics. He always got first class in student life. In the year 1948, he got the highest position in Agra University by taking Mathematics as a subject. In the year 1965, he has received his Ph.D. For many years, he was the lecturer and head of the Department of Mathematics in Agra College. Thereafter he was appointed Professor in the Department of Mathematics at Agra University. He was also the Dean of the Faculty of Science. He was an expert and advisor to research committees in many universities of India. He was a highly respected author. He taught for 36 years and wrote about 150 books while writing for 50 years. He is counted in Eminent Educationist of India. His name is also mentioned in INDIA’S WHO IS WHO published in the year 1977-78.