This PPT explores the different levels of Autism Spectrum Disorder as defined by DSM-5, ranging from Level 1 (requiring support) to Level 3 (requiring very substantial support). It highlights the severity of social, verbal, and behavioral challenges at each level. The presentation also discusses current treatment options, focusing on rehabilitative therapies and the potential role of stem cell therapy in improving quality of life and promoting functional independence, with future hope lying in regenerative medicine.