The early signs of autism appear during infancy. The progression might be unique among every individual. Some children may avoid eye contact, respond less to their name, or show limited interest in social interaction. Delayed speech, repetitive behaviours, unusual reactions to sounds, and difficulty expressing emotions are also commonly noticed. Parents may first observe that their child prefers routines or struggles with changes in daily activities. Recognising these signs early is important because timely support, behavioural guidance, and developmental therapies can help children improve communication, learning abilities, and social confidence over time. Advancells, India, is a leading stem cell research laboratory specialised in manufacturing stem cells for various diseases.