ASD Treatment Centres in jagraon. ASD Treatment in l jagraon. ASD Centres in jagraon. DIAGNOSTIC TOOLS AND METHODS :- Childhood Autism Rating Scale (CARS) - Childhood Autism Rating Scale (CARS) developed by Eric Schopler and his colleagues at division TEACCH, USA is one of the most popular tools used for thre purpose of diagnosis in india as well as all over the world. It can be used with children over 24 month of age. CARS involves an intertview with the parents or the child's family members and observation of the child in which fifteen differnet ares of functioning are assessed.