Rehabilitation psychology focuses on applying psychological principles to assist individuals with disabilities due to injury or illness, aiming to improve their quality of life and foster independence. Psychologists in this field work across various settings, including hospitals, clinics, and community agencies, and their practice encompasses emotional coping, behavioral adaptation, and research on disability-related challenges. The document also discusses the historical development of rehabilitation psychology, legislative frameworks in India, and the need for ongoing research and community-based support systems.