Copyright © 2012 - 2013 All rights reserved Neurogen Brain and Spine Institute. Criteria Inclusion Criteria:   " Diagnosed cases of any type of autism spectrum disorders " Age between 6 months to 40 years " Signed informed consent Exclusion Criteria: " Presence of acute infections such as Human immunodeficiency virus/Hepatitis B Virus/Hepatitis C Virus " Malignancies " Bleeding tendencies " Pneumonia " Renal failure " Severe liver dysfunction " Severe anemia [Hemoglobin < 8] " Any bone marrow disorder " Space occupying lesion in brain " Other acute medical conditions such as respiratory infection and pyrexia