Psychology: The Study of Human Behaviour About the Author BRAJ KUMAR MISHRA (Ph.D.), formerly Professor and the Head of the Department of Psychology, Doranda College, Ranchi, has about 40 years of teaching experience in the field of Psychology. Earlier, Dr. Mishra was one of the members of the senate in Ranchi University. He was nominated for inclusion as the Man of the Year 2001 in American Biographical Institute. Professor Mishra is the author of several books.