Dr. B L Agarwal possesses the degrees of MSc. (Maths); M Stat; PhD. He had been the Professor and University Head of the Department of Statistics and Mathematics of Rajasthan Agricultural University, Bikaner posted at Rajasthan College of Agriculture, Udaipur. He served this university for thirty one years. Dr. Agarwal has also been highly engaged in imparting statistical counselling to the research scientists. He is an invitee to deliver lectures on specialized topics in premier institutions of India. The author has published a number of research papers in the journals of national and international repute. The author has seven more books to his credit which are in wide circulation in India and also one book abroad. Dr. Agarwal is a reviewer of the research papers and books to Zentrablatt für Mathematik, Berlin, Germany. He is also a referee for the research papers to be published in a number of journals. Dr. B L Agarwal is a member of the Editorial Advisory Boards of the journals: In