evidence: - Disability has been defined based on an evolving and dynamic concept. [...] The act added mental illness, autism, spectrum disorder, cerebral palsy, muscular dystrophy, chronic neurological conditions, speech and language disability, thalassemia, hemophilia, sickle cell disease, multiple disabilities including deaf blindness, acid attack victims and Parkinson’s disease which were largely ignored in earlier act. In addition, the Government has been authorized to notify any other category of specified disability. [...] - A large number of disabilities are preventable, including those arising from medical issues during birth, maternal conditions, malnutrition, as well as accidents and injuries.