The author is a retired Professor of Chemistry. He was born to Mahesh Chandra Raval and Prakash Laxmi Raval on 14th October, 1952 in Balangir, Odisha, India. He studied in Mission School, Pruthwiraj High School, and graduated from Rajendra College, Balangir. Prof. Raval did his M.Sc. from Sambalpur University, Odisha, and a Post-M.Sc. diploma in Molecular Biophysics from the Indian Institute of Science, Bangalore.

He joined the Odisha Education Service in 1980 and obtained his Ph D in 1987 from Sambalpur University. His research areas of interest are Photosynthesis, Molecular Modeling, and Medicinal Chemistry. He has published more than 80 research papers, 5 book Chapters and one monograph.

Oxygen evolving complex is his prime topic of investigation. The evolution of the complex is important to the evolution and sustenance of life on Earth. Evolution of the Universe is the topic of query to all who seek knowledge and the author is not an exception. It is evident from some of his publications on the topic. These papers are the source of inspiration for this book.