The work on this topic has been inspiring, often exciting, most of the time challenging but always an interesting experience. This project bears on the imprint of many people who have made this book possible and an enjoyable experience for me.
First, I wish to express my gratitude to Dr. Nandita Babu, who guided this work and helped all the time without whom this work would not have been possible. Her personality to run something from problems to treat problems as lessons and avoidprevious mistakes have affected my behavior and my attitude toward learning. Her simplicity, strong personality, composites and commitment and over to this her command over her subject has not only made it easier to finish this work but changed my approach for life assignment.
I wish to express my sincere thanks to Dr. Akbar Hussain Head, Department of Psychology, Jamia Millia Islamia, New Dekhi for jos constructive apporach towards my work. He motivated me during my research of this work when I was facing a tough personal crisis of my life.
I am thankful to all medical fraternity who helped me in this task especially Dr. Tilak Raj renowned child specialist of Max Hospital, Patparganj Delhi, Dr. Bagwat Prasad running clinic at suburban area Gandhi Nagar, Delhi for exploring to subjects as per my requirements.